2015 Auto Club 400
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The 2015 Auto Club 400 was a
NASCAR The National Association for Stock Car Auto Racing, LLC (NASCAR) is an American auto racing sanctioning and operating company that is best known for stock car racing. The privately owned company was founded by Bill France Sr. in 1948, and ...
Sprint Cup Series The NASCAR Cup Series is the top racing series of the NASCAR, National Association for Stock Car Auto Racing (NASCAR). The series began in 1949 as the Strictly Stock Division, and from 1950 to 1970 it was known as the Grand National Division. ...
race Race, RACE or "The Race" may refer to: * Race (biology), an informal taxonomic classification within a species, generally within a sub-species * Race (human categorization), classification of humans into groups based on physical traits, and/or s ...
held on March 22, 2015, at Auto Club Speedway in Fontana, California. Contested over 209 laps – extended from 200 laps, due to a green–white–checker finish – on the D-shaped oval, it was the fifth race of the
2015 NASCAR Sprint Cup Series The 2015 NASCAR Sprint Cup Series was the 67th season of professional stock car racing in the United States and the 44th modern-era Cup season. The season began at Daytona International Speedway with the Sprint Unlimited exhibition race, the ...
season.
Brad Keselowski Bradley Aaron Keselowski (; born February 12, 1984) is an American professional stock car racing driver, team owner, and entrepreneur. He competes full-time in the NASCAR Cup Series, driving the No. 6 Ford Mustang for RFK Racing, a team he also ...
won the race – his 17th career victory – while
Kevin Harvick Kevin Michael Harvick (born December 8, 1975) is an American professional stock car racing driver. He competes full-time in the NASCAR Cup Series, driving the No. 4 Ford Mustang for Stewart-Haas Racing. Harvick is the 2014 Cup Series champion, ...
extended his top two finish streak to eight races with a runner-up finish. Kurt Busch, Paul Menard and Ryan Newman rounded out the top five. Busch won the pole for the race and led a race high of 65 laps; he lost the lead on the final lap and was passed by Keselowski and Harvick. The race had 19 lead changes among nine different drivers, as well as seven caution flag periods for 31 laps. Recording
Team Penske Team Penske (formerly Penske Racing) is an American professional auto racing organization, competing in the IndyCar Series, NTT IndyCar Series, NASCAR Cup Series, and the FIA World Endurance Championship. Debuting at the 1966 24 Hours of Daytona ...
's second NASCAR win at the track, Keselowski moved into fifth place in the points standings, which were led by Harvick; he left Fontana with a 28-point lead over
Joey Logano Joseph Thomas Logano (born May 24, 1990), is an American professional stock car racing driver. He competes full-time in the NASCAR Cup Series, driving the No. 22 Ford Mustang for Team Penske, and part-time in the NASCAR Camping World Truck Ser ...
. Chevrolet left with a 16-point lead over
Ford Ford commonly refers to: * Ford Motor Company, an automobile manufacturer founded by Henry Ford * Ford (crossing), a shallow crossing on a river Ford may also refer to: Ford Motor Company * Henry Ford, founder of the Ford Motor Company * Ford F ...
in the manufacturers' standings. The Auto Club 400 was carried by
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on the broadcast Fox network for the American television audience. The radio broadcast of the race was carried by the
Motor Racing Network Motor Racing Network (MRN) is a U.S. radio network that syndicates broadcasts of auto racing events, particularly NASCAR. MRN was founded in 1970 by NASCAR founder Bill France, Sr. and broadcaster Ken Squier, and is a wholly owned subsidiary of ...
and Sirius XM NASCAR Radio.


Report


Background

Auto Club Speedway (formerly California Speedway) is a , low-banked, D-shaped oval superspeedway in Fontana, California which has hosted NASCAR racing annually since 1997. It is also used for open wheel racing events. The racetrack is located near the former locations of Ontario Motor Speedway and Riverside International Raceway. The track is owned and operated by International Speedway Corporation and is the only track owned by ISC to have naming rights sold. The speedway is served by the nearby Interstate 10 and Interstate 15 freeways as well as a Metrolink station located behind the backstretch.
Kevin Harvick Kevin Michael Harvick (born December 8, 1975) is an American professional stock car racing driver. He competes full-time in the NASCAR Cup Series, driving the No. 4 Ford Mustang for Stewart-Haas Racing. Harvick is the 2014 Cup Series champion, ...
entered Auto Club with a 22-point lead over
Joey Logano Joseph Thomas Logano (born May 24, 1990), is an American professional stock car racing driver. He competes full-time in the NASCAR Cup Series, driving the No. 22 Ford Mustang for Team Penske, and part-time in the NASCAR Camping World Truck Ser ...
following his win the week before at Phoenix. Martin Truex Jr. entered 27 points back in third.
Kasey Kahne Kasey Kenneth Kahne (; born April 10, 1980) is an American dirt track racing driver and former professional stock car racing driver. He last competed in the Monster Energy NASCAR Cup Series in 2018, driving the No. 95 Dumont Jets/ Procore Technolo ...
entered 50 points back in fourth, with A. J. Allmendinger a further 5 points behind, in fifth.


Changes to qualifying

Starting at Auto Club Speedway – and taking effect in all three national touring series – drivers will no longer back out of their pit stalls when qualifying begins. Instead, they will now be parked with the nose of the car facing toward the track.


Entry list

The entry list for the Auto Club 400 was released on Monday, March 16, 2015, at 10:33 a.m. Eastern time. Forty-six cars were entered for the race. All 46, except for
Brian Scott Brian Joseph Scott (born January 12, 1988) is an American former professional stock car racing driver. Racing career Beginnings Scott has been racing competitively since the age of 12. One of his early career highlights came at the 360 Nationals ...
and
Reed Sorenson Bradley Reed Sorenson (born February 5, 1986) is an American professional stock car racing driver and spotter. He last competed part-time in the NASCAR Cup Series, driving the No. 27 Chevrolet Camaro ZL1 1LE for Premium Motorsports, the Nos. 74 ...
were entered the week before.
Mike Wallace Myron Leon Wallace (May 9, 1918 – April 7, 2012) was an American journalist, game show host, actor, and media personality. He interviewed a wide range of prominent newsmakers during his seven-decade career. He was one of the original correspo ...
was on the initial entry list, but was let go from his No. 66
Premium Motorsports Premium Motorsports (formerly Jay Robinson Racing) was an American professional stock car racing team that competed in the NASCAR Cup Series. The team last fielded the No. 15 Chevrolet Camaro ZL1 LE full-time for Brennan Poole, and the No. 27 Ca ...
Chevrolet the week prior. However, he was rehired by the team and was to drive the No. 66 at Auto Club Speedway, but the team ultimately withdrew from the race, due to sponsorship issues. The team's No. 62 Chevrolet, driven by Brendan Gaughan, was unaffected. On March 20, Michael Waltrip Racing announced that
Brett Moffitt Brett B. Moffitt (born August 7, 1992) is an American professional stock car racing driver. He competes full-time in the NASCAR Xfinity Series, driving the No. 25 Ford Mustang for AM Racing. He won Rookie of the Year Honors in 2015 in the NASCAR ...
would again replace
Brian Vickers Brian Lee Vickers (born October 24, 1983) is an American professional stock car and sports car racing driver. He last drove the No. 14 Chevrolet SS for Stewart-Haas Racing as an interim driver in the NASCAR Sprint Cup Series for the injured ...
in the No. 55
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due to further blood clots. This was also the first race that Moffitt officially became a candidate for Sprint Cup Rookie of the Year.
Chris Buescher Christopher William Buescher (born October 29, 1992) is an American professional stock car racing driver. He competes full-time in the NASCAR Cup Series, driving the No. 17 Ford Mustang for RFK Racing. He is the 2012 ARCA Racing Series and 2015 ...
drove the No. 34 Ford in his first Sprint Cup Series start.


First practice

Kurt Busch was the fastest in the first practice session with a time of 38.556 seconds and a speed of . Greg Biffle scraped the wall exiting turn 4 in the opening minutes of the session, causing cosmetic damage to his car.
Carl Edwards Carl Michael Edwards II (born August 15, 1979) is an American former professional stock car racing driver. He last competed in the NASCAR Sprint Cup Series, driving the No. 19 Toyota Camry for Joe Gibbs Racing. Prior to that, he drove the No. ...
, however, went to a backup car for the race after crashing his car on the exit of turn 4. Edwards joked that his car "went from a 12-inch to a six-inch sub real quick", referring to the sponsors of his car for the race, fast food franchise Subway. He also stated that he "tried to save it...that was not the right decision". Since the change took place prior to qualifying, Edwards is not mandated to start from the rear on Sunday, provided he does not change engines.


Qualifying

Kurt Busch won the pole with a time of 38.889 seconds and a speed of , taking his first pole position since the 2013 Bojangles' Southern 500 at
Darlington Raceway Darlington Raceway is a race track built for NASCAR racing located in Darlington, South Carolina. It is nicknamed "The Lady in Black" and "The Track Too Tough to Tame" by many NASCAR fans and drivers and advertised as "A NASCAR Tradition." It is ...
. His teammate
Kevin Harvick Kevin Michael Harvick (born December 8, 1975) is an American professional stock car racing driver. He competes full-time in the NASCAR Cup Series, driving the No. 4 Ford Mustang for Stewart-Haas Racing. Harvick is the 2014 Cup Series champion, ...
started next to him on the front row. Harvick stated that "hopefully,
hey Hey or Hey! may refer to: Music * Hey (band), a Polish rock band Albums * ''Hey'' (Andreas Bourani album) or the title song (see below), 2014 * ''Hey!'' (Julio Iglesias album) or the title song, 1980 * ''Hey!'' (Jullie album) or the title s ...
can keep it up this week", referring to his ongoing seven-race streak of Top 2 finishes, while also stating that he "didn't get to run where ewanted to run there were three cars on the apron down there where ewanted to be that had finished their lap".
Reed Sorenson Bradley Reed Sorenson (born February 5, 1986) is an American professional stock car racing driver and spotter. He last competed part-time in the NASCAR Cup Series, driving the No. 27 Chevrolet Camaro ZL1 1LE for Premium Motorsports, the Nos. 74 ...
and
Travis Kvapil Travis Wade Kvapil ( ; born March 1, 1976) is an American professional stock car driver. He last competed part-time in the NASCAR Gander Outdoors Truck Series, driving the No. 1 Chevrolet Silverado for Beaver Motorsports. He was the 2003 NASCAR C ...
both failed to qualify for the race.
Brett Moffitt Brett B. Moffitt (born August 7, 1992) is an American professional stock car racing driver. He competes full-time in the NASCAR Xfinity Series, driving the No. 25 Ford Mustang for AM Racing. He won Rookie of the Year Honors in 2015 in the NASCAR ...
went to a backup car following damage sustained in qualifying and as a result, he started from the rear.


Qualifying results


Practice (post-qualifying)


Second practice

Kurt Busch was the fastest in the second practice session with a time of 38.479 and a speed of .


Final practice

Kurt Busch was the fastest in the final practice session with a time of 38.925 and a speed of , completing a sweep of the weekend's practice sessions and qualifying.


Race


First-half


Start

As the cars were rolling off pit road,
Jeff Gordon Jeffery Michael Gordon (born August 4, 1971) is an American former professional stock car racing driver, who is the Vice Chairman for Hendrick Motorsports. He raced full-time from 1993 to 2015, driving the No. 24 Chevrolet for Hendrick M ...
's crew swapped out something in his car, but rejoined the starting lineup with no issues. The race was scheduled to start at 3:46 p.m., but started six minutes later when Kurt Busch led the field to the green flag. The field spread out to use up about five lanes in the opening laps. Eventually,
Kevin Harvick Kevin Michael Harvick (born December 8, 1975) is an American professional stock car racing driver. He competes full-time in the NASCAR Cup Series, driving the No. 4 Ford Mustang for Stewart-Haas Racing. Harvick is the 2014 Cup Series champion, ...
reeled in his teammate to take the lead on lap seven. Early in the race, A. J. Allmendinger began reporting that he was losing the engine of his car, while Martin Truex Jr. did likewise. Harvick was unable to pull away from Busch who began reeling him in until Busch was slowed down by the lapped car of
Jeb Burton John Edward "Jeb" Burton IV (born August 6, 1992) is an American professional stock car racing driver. He last competed full-time in the NASCAR Xfinity Series, driving the No. 27 Chevrolet Camaro for Our Motorsports. He is the son of Ward Burton ...
. The first caution of the race flew on lap 23 when David Ragan got turned by an aerodynamic push from Gordon's car in turn 4. Gordon had been saying on the radio that he would turn Ragan if he had to, stating over his in-car radio to "let him know it's the bumper". Alex Bowman stayed out to lead a lap before pitting and handed the lead to
Matt Kenseth Matthew Roy Kenseth (born March 10, 1972) is an American former professional stock car racing driver. He drives the No. 8 car in the Superstar Racing Experience. (SRX) Kenseth started racing on several short tracks in Wisconsin and won track cha ...
.


Restart from caution 1 and green flag stops

The race restarted on lap 28. Kenseth held the lead for five laps before yielding to teammate
Denny Hamlin James Dennis Alan Hamlin (born November 18, 1980) is an American professional stock car racing driver and NASCAR team owner. He competes full-time in the NASCAR Cup Series, driving the No. 11 Toyota Camry for Joe Gibbs Racing. He co-owns and ope ...
on lap 33. A cycle of green flag stops began on lap 60. Hamlin pitted on lap 62 and handed the lead to Jeff Gordon. He pitted on lap 63 and the lead cycled back to Hamlin. Ragan and Matt DiBenedetto served drive-through penalties for uncontrolled tires on pit road, while Alex Bowman also served a drive-through for speeding. By lap 83, more than half the field were at least one lap down, before the second caution of the race flew on lap 86 for debris in turn 3. After the culmination of the next round of stops, Kenseth exited pit road with the lead.


Second-half


Caution at halfway

The race restarted on lap 93. Going beneath Kenseth in turn 4, Busch took back the lead on lap 96. Two laps later, the third caution of the race flew when
Sam Hornish Jr. Samuel Jon Hornish Jr. (born July 2, 1979) is an American semi-retired professional auto racing driver. He last competed part-time in the NASCAR Xfinity Series, driving the No. 22 Ford Mustang for Team Penske in 2017. He began his top-tier raci ...
moved up the track exiting turn 2 and got turned into the wall by
Trevor Bayne Trevor Mitchell Bayne (born February 19, 1991) is an American professional stock car racing driver, dirt racing driver, team owner, and businessman. He last competed part-time in the NASCAR Xfinity Series, driving the No. 18 Toyota Supra for Joe ...
. Martin Truex Jr. exited pit road with the lead by taking two tires. The race restarted on lap 105. Truex did not hold the lead for long as Kurt Busch took the lead back in turn 1. Busch, Harvick and a mess of cars hit pit road on lap 138. Paul Menard briefly took the lead, but did not lead a lap through it while
Carl Edwards Carl Michael Edwards II (born August 15, 1979) is an American former professional stock car racing driver. He last competed in the NASCAR Sprint Cup Series, driving the No. 19 Toyota Camry for Joe Gibbs Racing. Prior to that, he drove the No. ...
did and the lead cycled back to Kurt Busch following a brief drag race down the back stretch with teammate Kevin Harvick.
Michael Annett Michael W. Annett (born June 23, 1986) is an American retired professional stock car racing driver. He last competed in the NASCAR Xfinity Series, driving the No. 1 Chevrolet Camaro for JR Motorsports. Racing career Early career Save for a f ...
served a drive-through penalty for an uncontrolled tire. Harvick took the lead back with 56 laps to go, putting Busch in 2nd. The fourth caution of the race flew with 47 laps to go for debris on the front stretch. Matt Kenseth exited pit road with the lead.
Joey Logano Joseph Thomas Logano (born May 24, 1990), is an American professional stock car racing driver. He competes full-time in the NASCAR Cup Series, driving the No. 22 Ford Mustang for Team Penske, and part-time in the NASCAR Camping World Truck Ser ...
was forced to drop to the tail end of the line for an uncontrolled tire.


Restart from caution 4 and 5th caution

The race restarted with 42 laps to go, with Matt Kenseth still out in front. Debris in turn 1 brought out the fifth caution of the race with 16 laps to go. Kurt Busch took the lead on pit road from Matt Kenseth who was pitted behind the start/finish line and exited with the lead. Kenseth broke an axle exiting his pit stall, while Denny Hamlin was forced to drop to the tail end of the line for an uncontrolled tire.


Fifth restart and 6th caution

The race restarted with eleven laps to go and Harvick lost the lead to Kurt Busch. The two of them fought it out for the last few laps. The sixth caution of the race flew with two laps to go for debris in turn 4. Jeff Gordon stayed out to take the lead along with Tony Stewart and Greg Biffle.


Green–white–checker finish

On the first attempt at a green–white–checker finish,
Kyle Larson Kyle Miyata Larson (born July 31, 1992) is an American professional auto racing driver. He competes full-time in the NASCAR Cup Series, driving the No. 5 Chevrolet Camaro ZL1 for Hendrick Motorsports. Larson is the 2021 NASCAR Cup Series champi ...
slid into the wall exiting turn 2 and lost his rear bumper, causing another caution flag, the seventh of the race. On the second attempt, Kurt Busch led the field to the green. As the white flag was waving, Greg Biffle wrecked on the front stretch.
Brad Keselowski Bradley Aaron Keselowski (; born February 12, 1984) is an American professional stock car racing driver, team owner, and entrepreneur. He competes full-time in the NASCAR Cup Series, driving the No. 6 Ford Mustang for RFK Racing, a team he also ...
took the lead in turn 2 and powered to the checkered flag. Keselowski praised the work of his team to beat Kevin Harvick and Kurt Busch, who Keselowski stated "had great cars the whole weekend and probably had the field covered on speed". Harvick, who recorded his eighth consecutive top-two finish, explained that he had "fought through a day of track position" but "that's what this team is made of". Busch, who completed the top three, bemoaned the latter cautions, expressing that his car "just got hung out" and that he "just didn't get the job done". All 43 cars were running at the race's conclusion, for the first time since the 2013 Brickyard 400 at Indianapolis Motor Speedway.


Race results


Race statistics

*19 lead changes among 9 different drivers *7 cautions for 31 laps *Time of race: 2 hours, 58 minutes, 18 seconds *Average speed: *
Brad Keselowski Bradley Aaron Keselowski (; born February 12, 1984) is an American professional stock car racing driver, team owner, and entrepreneur. He competes full-time in the NASCAR Cup Series, driving the No. 6 Ford Mustang for RFK Racing, a team he also ...
took home $357,871 in winnings


Race awards

*
Coors Light Coors Light is a 4.2% (US) ABV light beer brewed in Golden, Colorado; Albany, Georgia; Elkton, Virginia; Fort Worth, Texas; Irwindale, California; and Milwaukee, Wisconsin. It was first produced in 1978 by the Coors Brewing Company. The Ca ...
Pole Award: Kurt Busch (38.889, ) * 3M Lap Leader: Kurt Busch (65 laps) * American Ethanol Green Flag Restart Award: Kurt Busch (40.426, ) * Duralast Brakes "Bake In The Race" Award:
Kevin Harvick Kevin Michael Harvick (born December 8, 1975) is an American professional stock car racing driver. He competes full-time in the NASCAR Cup Series, driving the No. 4 Ford Mustang for Stewart-Haas Racing. Harvick is the 2014 Cup Series champion, ...
*
Freescale Freescale Semiconductor, Inc. was an American semiconductor manufacturer. It was created by the divestiture of the Semiconductor Products Sector of Motorola in 2004. Freescale focused their integrated circuit products on the automotive, embedd ...
"Wide Open": Kurt Busch *
Ingersoll Rand Ingersoll Rand is an American multinational company that provides flow creation and industrial products. The company was formed in February 2020 through the spinoff of the industrial segment of Ingersoll-Randplc (now known as Trane Technologies) ...
Power Move: Justin Allgaier, 5 positions * MAHLE Clevite Engine Builder of the Race: Hendrick Engines, #41 *
Mobil 1 Mobil 1 is a brand of synthetic motor oil and other automotive lubrication products. Originally developed by the Mobil oil company, it is now globally marketed and sold by ExxonMobil. Mobil 1 engine oil was introduced in 1974. The brand range no ...
Driver of the Race: Kurt Busch (135.4 driver rating) * Moog Steering and Suspension Problem Solver of The Race: Paul Menard (crew chief Justin Alexander 0.092 seconds) *
NASCAR The National Association for Stock Car Auto Racing, LLC (NASCAR) is an American auto racing sanctioning and operating company that is best known for stock car racing. The privately owned company was founded by Bill France Sr. in 1948, and ...
Sprint Cup Leader Bonus: No winner: rolls over to $20,000 at next event *
Sherwin-Williams Sherwin-Williams Company is an American Cleveland, Ohio–based company in the paint and coating manufacturing industry. The company primarily engages in the manufacture, distribution, and sale of paints, coatings, floorcoverings, and related p ...
Fastest Lap: David Ragan (Lap 2: 39.231, ) * Sunoco Rookie of The Race:
Brett Moffitt Brett B. Moffitt (born August 7, 1992) is an American professional stock car racing driver. He competes full-time in the NASCAR Xfinity Series, driving the No. 25 Ford Mustang for AM Racing. He won Rookie of the Year Honors in 2015 in the NASCAR ...


Post-race


Confrontation between Stewart and Truex

Following the race,
Tony Stewart Anthony Wayne Stewart (born May 20, 1971), nicknamed Smoke, is an American semi-retired professional stock car racing driver, current NASCAR team co-owner of Stewart-Haas Racing, and current co-owner of the Superstar Racing Experience. He is ...
confronted Martin Truex Jr. on pit road. The issue stemmed from Truex trying to get down after Aric Almirola on the bottom of the track and almost collected Stewart in the process. Stewart told reporters that after the issue between Truex and Almirola, Truex "drove across the race track into us" and that the move was "just stupid".


Tire confiscation

Following the race,
NASCAR The National Association for Stock Car Auto Racing, LLC (NASCAR) is an American auto racing sanctioning and operating company that is best known for stock car racing. The privately owned company was founded by Bill France Sr. in 1948, and ...
took tires from the teams of
Kevin Harvick Kevin Michael Harvick (born December 8, 1975) is an American professional stock car racing driver. He competes full-time in the NASCAR Cup Series, driving the No. 4 Ford Mustang for Stewart-Haas Racing. Harvick is the 2014 Cup Series champion, ...
, Kurt Busch, Paul Menard and Ryan Newman – all of whom finished in the top five – which were sent to an unnamed third party for further evaluation, instead of to NASCAR's R&D Center in
Charlotte, North Carolina Charlotte ( ) is the most populous city in the U.S. state of North Carolina. Located in the Piedmont region, it is the county seat of Mecklenburg County. The population was 874,579 at the 2020 census, making Charlotte the 16th-most populo ...
.


NASCAR explanation

Following the race, Richard Buck, director of competition for the Sprint Cup Series, met with the media to address a few of the late race calls. The calls included a debris call with two laps to go, multiple reports of debris before the scheduled finish, and not calling a caution for Greg Biffle's spin on the final lap. NASCAR executive vice-president Steve O'Donnell joined Mike Bagley and Pete Pistone on Sirius XM NASCAR Radio programme ''The Morning Drive'' the next day to further address the calls made late in the race. O'Donnell discussed how the previous day's situation was different from a similar situation with the previous month's Daytona 500, and concluded the interview with a reiteration of what Richard Buck had told the media after the race.


Penalties

On the Wednesday following the race,
NASCAR The National Association for Stock Car Auto Racing, LLC (NASCAR) is an American auto racing sanctioning and operating company that is best known for stock car racing. The privately owned company was founded by Bill France Sr. in 1948, and ...
penalized the No. 33 team of
Brian Scott Brian Joseph Scott (born January 12, 1988) is an American former professional stock car racing driver. Racing career Beginnings Scott has been racing competitively since the age of 12. One of his early career highlights came at the 360 Nationals ...
for a rules infraction discovered during opening day inspection on Friday. The infraction was a P4 level penalty and violated the following sections in the 2015 NASCAR rule book: *12.1: Actions detrimental to stock car racing; *20.14.2: Rear Suspension: Truck Trailing Arm :*E. The left and right side truck trailing arms must be mounted to the truck trailing arm mounting brackets using a one-piece, minimum ¾ inch diameter magnetic steel bolt. :*F. The horizontal centerline of the highest truck trailing arm mounting bolt must not be higher than the top surface of the truck trailing arm crossmember, at the respective truck trailing arm mounting bracket, when the vehicle is at inspection orientation. INFRACTION: The ¾ inch diameter magnetic steel truck trailing arm mounting bolt was not installed horizontally. :*J. Truck trailing arm must conform to the following drawing as specified in the NASCAR rule book: Rear Suspension-Truck Trailing Arm: A-008-00183-14 Rev.C INFRACTION: Truck trailing arm monoball sleeve does not meet the drawing specifications. Sleeve is required to be minimum .125 inch minimum thick x two inches wide sleeve machined for press fit of .750 I.D. or .875 I.D. monoball assembly. *20.3.3.2.1: Truck Trailing Arm Crossmember Assembly:Truck Trailing Arm Mounting Brackets :*B. Truck trailing arm mounting brackets must be constructed of magnetic steel flat plate with a minimum thickness of 0.169 inch. INFRACTION: Truck trailing arm mounting bracket adapter was machined from Aluminum solid. *20.20: Assembled Vehicle Overall Rules *A. Except in cases explicitly permitted in the NASCAR rules, installation of additional components and/or modifications of existing components to affect the aerodynamic properties of the vehicle will not be permitted, including but not limited to, safety systems, chassis and roll cage, suspension, steering systems, brake systems, heat shields, body fillers, body sealers, filler panels, drivetrain components and exhaust components. The options for a P4 penalty are outlined the following sections of the NASCAR rule book: *12.5.3.4: P4 Penalty Options: :*A. Violations leading to P4 penalties, in general, are very serious. They include, but are not limited to, a broad range of infractions such as: :*B. Parts which do not meet specifications :*F. Measurement failures of significance :*G. These often involve primary component or system infractions not otherwise to the magnitude of P5 infractions, but could also include secondary component or system infractions, particularly if of a nature suggesting some of the characteristics described in P5 ... and/or involving safety implications. *12.5.3.4.2: Minimum P4 Penalty Options (includes all three points below): :*A. Loss of 25 championship driver and owner points, regardless of whether the violation occurred during a Championship race or not. :*B. $40,000–$75,000 fine :*C. Suspension for the next three series Championship Races, plus any non-championship races or special events which might occur during that time period, for the crew chief, plus probation through the end of the calendar year, or probation for a six month period following the issuance of the penalty notice if that period spans across two consecutive seasons. As a result of this violation, crew chief Slugger Labbe was fined $50,000 and suspended for the next three NASCAR Sprint Cup Series Championship races, plus any non-championship races or special events which might occur during that time period. Labbe has also been placed on NASCAR probation through Dec. 31. In addition, car owner Joe Falk was docked 25 championship car owner points.


Appeal

On Tuesday, April 14, the penalties were reduced to a P2 level. The suspension of Slugger Labbe was upheld, but the fine was reduced to $20,000. The 25 point penalty handed to the team was reduced to a ten-point penalty. "The process was very fair," Falk said in a statement. "We agree the part should have been presented (beforehand) to the R&D Center. We're satisfied with the outcome and we won't appeal further."


Further penalties

Later on, Ryan Newman's team was penalized for rules infractions discovered as a result of NASCAR's post-event tire audit conducted following the race. The infractions amounted to a P5 level penalty and violated numerous sections in the 2015 NASCAR rule book: *12.1: Actions detrimental to stock car racing *20.16: Wheels and tires :*A. Any device, modification, or procedure to the tire or wheel, including the valve stem hardware, that is used to release pressure, beyond normal pressure adjustments, from the tire and/or inner shield, will not be permitted. *20.16.2: Tires :*F. Modifications to the tires, by treatment or any other means, will not be permitted. *Section 12.5.3.5.1 lists P5 Penalty Violation examples that could include but are not limited to: :*A. Effecting, modifying and/or altering the standard tires in any way, other than through authorized means such as tire pressure adjustments within the recommended range, permitted tire cooling when mounted on the race vehicle; or heat-cycling on the race vehicle on the race track earlier in the event. *12.5.3.5.2: Minimum P5 Penalty Options (includes all four points below): :*A. Loss of 50 championship driver and owner points, regardless of whether the violation occurred during a Championship race or not :*B. US$75,000–$125,000 fine :*C. Suspension for the next six series Championship Races, plus any non-championship races or special events which might occur during that time period, for the crew chief and any other team members as determined by NASCAR :*D. Probation through the end of the calendar year for all suspended members, or for a six-month period following the issuance of the penalty notice if that period spans across two consecutive seasons *12.5.3.5.3: P5 Level infractions detected during post-race inspection: If the infraction is detected during post-race inspection, then the following penalty elements will be added to those listed previously in this section: :*A. Loss of an additional 25 Championship driver and owner points; regardless of whether it was a Championship Race or not :*B. Loss of an additional $50,000 As a result of the violations, crew chief
Luke Lambert Lucas A. Lambert is an American NASCAR crew chief who works for Spire Motorsports as the crew chief of their No. 77 Chevrolet Camaro in the NASCAR Cup Series driven by Carson Hocevar. Lambert was previously Cup Series crew chief for Richard Chil ...
was fined $125,000, suspended from the next six Sprint Cup events, including any non-championship races or special events, and placed on NASCAR probation through December 31. James Bender, team tire technician, and Philip Surgen, team engineer, were also suspended for the same amount of time. Newman was penalized 75 driver and owner points.


Appeal

On Thursday, April 16, the P5 penalty was upheld, but the fines and points loss were reduced. Instead of the 75 point maximum, Newman only lost the 50 point minimum and Luke Lambert's fine was reduced. Lambert's six race suspension was upheld. The three member National Motorsports Appeal Panel ruled that while the team had manipulated the tires (thus keeping it a P5 penalty), they amended the points and fines because "there is no written explanation of what constitutes post race inspection". This stemmed from the team's argument that the tires were not inspected post-race because they were confiscated during the race.


Media


Television

Fox Sports Fox Sports is the brand name for a number of sports channels, broadcast divisions, programming, and other media around the world. The ''Fox Sports'' name has since been used for other sports media assets. These assets are held mainly by the F ...
covered their fifteenth race at Auto Club Speedway.
Mike Joy Michael Joy (born November 25, 1949) is an American TV sports announcer and who currently serves as the lap-by-lap voice of Fox Sports' coverage of NASCAR. His color analyst is Clint Bowyer. Counting 2022, Joy has been part of the live broadcast ...
, Larry McReynolds, and Darrell Waltrip had the call in the booth for the race.
Jamie Little Jamie Little (born April 9, 1978) is an American pit reporter for NASCAR coverage on Fox. Little is a former pit reporter for ESPN/ABC coverage of the Indy Racing League, although she returned to her pit reporting duty for the 2007 and 2008 I ...
,
Chris Neville Chris Neville is a NASCAR pit road reporter who most recently worked for Fox Sports, not to be confused with Garwood Lanes Thursday night league president, Chris Neville. He is best known for his work with Fox, as well as formerly calling the Ro ...
, and
Matt Yocum Matthew Yocum (born April 8, 1968) is a long-standing reporter in motorsports, best known for being a NASCAR pit reporter. He works for CBS as a pit reporter to cover the Superstar Racing Experience (SRX) as of 2021. He most recently worked in tha ...
handled the pit road duties for the television side.


Radio

MRN had the radio call for the race which was also simulcast on Sirius XM NASCAR Radio. Joe Moore, Jeff Striegle and 2001 race winner
Rusty Wallace Russell William "Rusty" Wallace Jr. (born August 14, 1956) is an American former NASCAR racing driver. He has won the 1984 NASCAR Cup series Rookie of the Year and the 1989 NASCAR Winston Cup Championship. Over the course of his successful care ...
called the race in the booth when the field was racing down the front stretch. Dan Hubbard called the race from atop a billboard outside turn 2 when the field was racing through turns 1 and 2. Kyle Rickey called the race from billboard outside turn 4 when the field was racing through turns 3 and 4. Alex Hayden,
Glenn Jarrett Glenn Jarrett (born August 11, 1950) is an American former NASCAR driver from Conover, North Carolina and the oldest son of Ned Jarrett and older brother of Dale Jarrett. He made 10 Winston Cup starts from 1978 to 1983 with a best finish of 12th ...
and Winston Kelley worked pit road for MRN.


Standings after the race

;Drivers' Championship standings ;Manufacturers' Championship standings *Note: Only the first sixteen positions are included for the driver standings.


Notes


References

{{2015 NASCAR Sprint Cup
Auto Club 400 The Pala Casino 400 is a 400-mile (643.737 km) NASCAR Cup Series stock car race held at the Auto Club Speedway in Fontana, California. It is the second race of the Cup Series season (after the Daytona 500) and has been since 2022 as well as f ...
Auto Club 400 The Pala Casino 400 is a 400-mile (643.737 km) NASCAR Cup Series stock car race held at the Auto Club Speedway in Fontana, California. It is the second race of the Cup Series season (after the Daytona 500) and has been since 2022 as well as f ...
NASCAR races at Auto Club Speedway