The P538 or P538S was a
rear-engined
In automobile design, a rear-engine design layout places the engine at the rear of the vehicle. The center of gravity of the engine itself is behind the rear axle. This is not to be confused with the center of gravity of the whole vehicle, as an im ...
race car
Auto racing (also known as car racing, motor racing, or automobile racing) is a motorsport involving the racing of automobiles for competition.
Auto racing has existed since the invention of the automobile. Races of various sorts were organi ...
launched in late 1965 or early 1966 by
Scuderia Bizzarrini of
Livorno, Italy
Livorno () is a port city on the Ligurian Sea on the western coast of Tuscany, Italy. It is the capital of the Province of Livorno, having a population of 158,493 residents in December 2017. It is traditionally known in English as Leghorn (pronou ...
.
The cars used five-speed manual
transaxle
A transaxle is a single mechanical device which combines the functions of an automobile's transmission, axle, and differential into one integrated assembly. It can be produced in both manual and automatic versions.
Engine and drive at the ...
s with gearing specific to the race for which each car was constructed. Braking was via inboard four wheel
disc brake
A disc brake is a type of brake that uses the calipers to squeeze pairs of pads against a disc or a "rotor" to create friction. This action slows the rotation of a shaft, such as a vehicle axle, either to reduce its rotational speed or to hol ...
s, with a fully
independent suspension
Independent suspension is any automobile suspension system that allows each wheel on the same axle to move vertically (i.e. reacting to a bump on the road) independently of the others. This is contrasted with a beam axle or deDion axle system in w ...
. The body was made of
fiberglass
Fiberglass (American English) or fibreglass (Commonwealth English) is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet called a chopped strand mat, or woven into glass cloth ...
over a tubular steel chassis.
Only 3 spider cars were produced by Bizzarrini. # P538*001, # P538*002 and # P538*003. #001 with Lamborghini V12 engine. That car crashed during tests and the history ended right there, because the chassis was cut up. The Lamborghini engine and running gear were removed and re-used on #002. #002 was supposed to drive at Le Mans in 1966 but that timeline was too ambitious. #002 was last reported being in the San Diego Automotive Museum (2017). #003 inherited some parts of the back end of the chassis of #001. This car had a Chevrolet V8 engine. It did start at Le Mans in 1966, with starting number # 10. It was entered in 2 more races (Mugello was one) later that year and thereafter received a plexiglass roof. It was entered as a Sport Prototype (unsuccessfully) as open cars were banned from Le Mans. Later the mechanical parts of #003 were parted out and used to built the Manta. The body was restored by Oliver Kuttner and a Chevrolet engine fitted. The car was second in class at Pebble Beach in 1990. Last known location; for sale at Automotive Collection, Las Vegas 2009.
Then there is the white closed P538 Duca d' Aosta with chassis number # 262 974, but that car never had a spider body.
So 3 spiders in red and 1 coupe built in white. These were the original P538's.
P538-003 debuted at
Le Mans
Le Mans (, ) is a city in northwestern France on the Sarthe River where it meets the Huisne. Traditionally the capital of the province of Maine, it is now the capital of the Sarthe department and the seat of the Roman Catholic diocese of Le Man ...
in 1966 with starting number #10 with Swiss driver Edgar Berney taking the first stint. It retired with a broken steering arm and a split oil pipe. A second team in a production-based Bizzarrini A3/C with starting number #11 with chassis number # BA4*106, driven by
Sam Posey
Sam Posey (born May 26, 1944)) is an American former racing driver and sports broadcast journalist.
Early life and driving career
Posey's father was killed in the Battle of Okinawa. Posey grew up on his grandfather's Connecticut estate near Lime ...
and
Massimo Natili, was disqualified after a pit lane violation, possibly while returning with serious frame damage.
Continuation P538s
Beginning in the mid-1970s and continuing at least through the 1990s, "continuation" cars were built. Amongst those building the cars, was former Bizzarrini engineer
Salvatore Diomante Salvatore Diomante is an automobile engineer and restorer, best known as Bizzarrini's factory manager in the 1960s.
Diomante resides in Nichelino, Italy and operates Autocostruzioni S.D., where he keeps parts, special tools and original moulds f ...
at Autocostruzione SD, Torino. He began building "continuation" P538s on commission for private buyers. These may be distinguished from 1960s-built cars by the use of square as opposed to round tubing. Giotto Bizzarrini and his wife Rosanna assisted in the construction of some of the early "continuation" cars, and they were built using some original Sixties Bizzarrini components from the parts inventory. The first two cars of this "continuation" series using square-tube construction bear serial numbers #P538*400*001 and #P538*400*002; the first with a Lamborghini Islero V12 engine and the second with Lamborghini V12 engine with number #0127. Luciano Bertolero ordered these two cars. Diomante and others constructed an unknown number of these "continuation" cars, Diomante using original fiberglass body molds. At least 25 "continuation" cars are known today.
References
{{Reflist
Book "Le Mans 1960 - 1969" written by Quentin Spurring, published in May 2010 by Haynes Publishing.
http://www.ultimatecarpage.com/car/2992/Bizzarrini-P538-Duca-d-Aosta-Coupe.html retrieved 12 August 2008 (UTC)
P538S
Sports racing cars