Class 1 Touring Cars refers to two generations of prototype
silhouette-style touring car
Touring car and tourer are both terms for open cars (i.e. cars without a fixed roof).
"Touring car" is a style of open car built in the United States which seats four or more people. The style was popular from the early 1900s to the 1930s.
Th ...
regulations employed by the
FIA
FIA is the Fédération Internationale de l'Automobile (English: International Automobile Federation), the world's governing body for all forms of motor sport where four or more wheels are used.
Fia or FIA may also refer to: People
* Fia Backst ...
.
First generation (1993-1996)
The first generation was a production-based formula introduced in 1993 along with Class 2 Touring Cars, the latter officially becoming known as
Super Touring
Super Touring, Class 2 or Class II was a motor racing Touring Cars category defined by the Fédération Internationale de l'Automobile (FIA) for national touring car racing in 1993. It was based on the "2 litre Touring Car Formula" created ...
cars from 1995. Class 1 permitted more liberal modifications to the vehicles than those allowed for Class 2 cars.
[Alfa Romeo 155 DTM]
Retrieved from www.ultimatecarpage.com on 19 November 2009
These Class 1 regulations restricted engines to a maximum of six cylinders, 2.5 litres capacity and four valves per cylinder.
[European Touring Car Championships, Automobile Year, 1995/96, page 206] The basic unit had to be derived from a production engine made in quantity by the same manufacturer as the car, although it did not have to be from the same model as that being raced and could be extensively modified.
All-wheel drive
An all-wheel drive vehicle (AWD vehicle) is one with a powertrain capable of providing power to all its wheels, whether full-time or on-demand.
The most common forms of all-wheel drive are:
;1x1 : All unicycles Reflecting one axle with one w ...
,
traction control
A traction control system (TCS), also known as ASR (from german: Antriebsschlupfregelung, lit=drive slippage regulation), is typically (but not necessarily) a secondary function of the electronic stability control (ESC) on production motor vehicle ...
,
anti-lock brakes
An anti-lock braking system (ABS) is a safety anti-skid braking system used on aircraft and on land vehicles, such as cars, motorcycles, trucks, and buses. ABS operates by preventing the wheels from locking up during braking, thereby maintainin ...
and
electronically controlled differentials were permitted.
Aerodynamic aids were free below the wheel centreline and, from 1995,
suspension
Suspension or suspended may refer to:
Science and engineering
* Suspension (topology), in mathematics
* Suspension (dynamical systems), in mathematics
* Suspension of a ring, in mathematics
* Suspension (chemistry), small solid particles suspend ...
systems could be purpose-built rather than production-based.
Class 1 Touring Cars contested the
Deutsche Tourenwagen Meisterschaft
The Deutsche Tourenwagen Meisterschaft (DTM) was a touring car racing series held from 1984 to 1996. Originally based in Germany, it held additional rounds elsewhere in Europe and later worldwide.
The original DTM had resumed racing with producti ...
series from 1993 to 1995, the
International Touring Car Series in 1995 and for the
International Touring Car Championship
International is an adjective (also used as a noun) meaning "between nations".
International may also refer to:
Music Albums
* ''International'' (Kevin Michael album), 2011
* ''International'' (New Order album), 2002
* ''International'' (The T ...
in 1996.
Only three manufacturers,
Alfa Romeo
Alfa Romeo Automobiles S.p.A. () is an Italian luxury car manufacturer and a subsidiary of Stellantis. The company was founded on 24 June 1910, in Milan, Italy. "Alfa" is an acronym of its founding name, "Anonima Lombarda Fabbrica Automobili." ...
,
Mercedes-Benz
Mercedes-Benz (), commonly referred to as Mercedes and sometimes as Benz, is a German luxury and commercial vehicle automotive brand established in 1926. Mercedes-Benz AG (a Mercedes-Benz Group subsidiary established in 2019) is headquartere ...
and
Opel
Opel Automobile GmbH (), usually shortened to Opel, is a German automobile manufacturer which has been a subsidiary of Stellantis since 16 January 2021. It was owned by the American automaker General Motors from 1929 until 2017 and the PSA Grou ...
, competed in Class 1 during the short history of the original category, with genuine works efforts (
Audi
Audi AG () is a German automotive manufacturer of luxury vehicles headquartered in Ingolstadt, Bavaria, Germany. As a subsidiary of its parent company, the Volkswagen Group, Audi produces vehicles in nine production facilities worldwide.
Th ...
and
BMW had built cars based on the B4 80 Quattro and E36 M3 respectively for the class, but never raced them) and the withdrawal of Alfa Romeo and Opel from the International Touring Car Championship at the end of 1996 effectively spelt the end of the class.
Second generation (2019-2020)
In early 2014, the DTM and the Japanese
Super GT Series
Super GT (stylized as SUPER GT) is a grand touring car racing series that began in 1993. Launched as the , generally referred to as either the JGTC or the All Japan Grand Touring Car Championship, the series was renamed to Super GT in 2005. It is ...
began a co-operation agreement in which the two series would begin to merge their technical regulations. This led to an official tie-up in September of the same year, with plans for the DTM to move to 2.0-litre inline-4 engines by 2017. Aerodynamic alterations were agreed in 2015, with the seeds sown for potential joint-races between the series.
Later in the same year however, the regulation changes were postponed to 2019 given DTM manufacturers' reluctance to potentially engage in more costly development. Super GT would also delay the implementation of the regulations to 2020, as the final regulations were signed off in 2018.
The second generation of Class 1 Touring Car is a purpose-built racer based on a two-door road-going model. The cars feature a two-litre turbocharged inline-four engine, capped at 650 hp and mounted in the front of the car. Push-to-pass and
DRS are employed on the DTM vehicles (but not in Super GT), which benefit from 3.4t of downforce. All vehicles must be front-engine, rear-wheel drive.
The first Class 1 cars debuted at the
2019 DTM Hockenheim round. DTM and Super GT conducted joint-races at the end of 2019, however both saw the previous generation Super GT GT500 cars enter.
Aston Martin
Aston Martin Lagonda Global Holdings PLC is an English manufacturer of luxury sports cars and grand tourers. Its predecessor was founded in 1913 by Lionel Martin and Robert Bamford. Steered from 1947 by David Brown, it became associated with ...
, entering DTM for the first time through the new regulations, concluded their program after a single season with constructors
R-Motorsport claiming the cars were too expensive. Audi followed suit by announcing their departure from the series for the 2021 season in April 2020. The DTM eventually abandoned the regulation set after just two seasons and switched to a
GT3–based formula from
2021
File:2021 collage V2.png, From top left, clockwise: the James Webb Space Telescope was launched in 2021; Protesters in Yangon, Myanmar following the 2021 Myanmar coup d'état, coup d'état; A civil demonstration against the October–November 2021 ...
.
Specifications
* Engine displacement:
DOHC
An overhead camshaft (OHC) engine is a piston engine where the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion c ...
inline-4
A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft.
The vast majority of automotive four-cylinder engines use a straight-four layout (with the ...
*Engine management:
Bosch Motronic MS 7.4 (
Deutsche Tourenwagen Masters
The Deutsche Tourenwagen Masters (DTM, German Touring Car Masters) is a grand touring car series sanctioned by ITR e.V. who have been affiliated to the DMSB-FIA since 1984. The series is based in Germany, with rounds elsewhere in Europe. The ser ...
since 2019 and
Super GT GT500 since 2020)
* Gearbox: 6-speed
paddle shift gearbox (must have reverse)
* Weight: including driver and fuel (
Deutsche Tourenwagen Masters
The Deutsche Tourenwagen Masters (DTM, German Touring Car Masters) is a grand touring car series sanctioned by ITR e.V. who have been affiliated to the DMSB-FIA since 1984. The series is based in Germany, with rounds elsewhere in Europe. The ser ...
) and including driver and fuel (
Super GT GT500)
*Power output: (2019) later (2020) including push-to-pass extra boost (
Deutsche Tourenwagen Masters
The Deutsche Tourenwagen Masters (DTM, German Touring Car Masters) is a grand touring car series sanctioned by ITR e.V. who have been affiliated to the DMSB-FIA since 1984. The series is based in Germany, with rounds elsewhere in Europe. The ser ...
); (
Super GT GT500)
* Fuel:
Aral Ultimate 102 unleaded (
Deutsche Tourenwagen Masters
The Deutsche Tourenwagen Masters (DTM, German Touring Car Masters) is a grand touring car series sanctioned by ITR e.V. who have been affiliated to the DMSB-FIA since 1984. The series is based in Germany, with rounds elsewhere in Europe. The ser ...
) and various (
Super GT GT500)
* Fuel capacity:
* Fuel delivery:
Gasoline direct injection
Gasoline direct injection (GDI), also known as petrol direct injection (PDI), is a mixture formation system for internal combustion engines that run on gasoline (petrol), where fuel is injected into the combustion chamber. This is distinct fro ...
* Fuel-mass flow restrictor rate: Limited by regulations to with push-to-pass in 2019 later with push-to-pass in 2020 (
Deutsche Tourenwagen Masters
The Deutsche Tourenwagen Masters (DTM, German Touring Car Masters) is a grand touring car series sanctioned by ITR e.V. who have been affiliated to the DMSB-FIA since 1984. The series is based in Germany, with rounds elsewhere in Europe. The ser ...
only)
* Fuel injection rail and injector pressure: Maximum
* Aspiration: Single-
turbocharge
In an internal combustion engine, a turbocharger (often called a turbo) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake gas, forcing more air into the engine in order to pro ...
d
* Turbocharger: Garrett 846519-15
* Turbo boost pressure:
* Length: Not exceeding including rear wing
* Width:
* Wheelbase: restricted. Adjustable wheelbase banned
* Steering: Power-assisted
rack and pinion
A rack and pinion is a type of linear actuator that comprises a circular gear (the '' pinion'') engaging a linear gear (the ''rack''). Together, they convert rotational motion into linear motion. Rotating the pinion causes the rack to be driven ...
*Prohibitings: Traction control, active suspension and anti-lock braking systems
List of FIA Class 1 homologated touring cars
First generation (1993-1996)
Second generation (2019-2020)
See also
*
Super Touring
Super Touring, Class 2 or Class II was a motor racing Touring Cars category defined by the Fédération Internationale de l'Automobile (FIA) for national touring car racing in 1993. It was based on the "2 litre Touring Car Formula" created ...
– FIA Class 2 Touring Cars
*
Deutsche Tourenwagen Meisterschaft
The Deutsche Tourenwagen Meisterschaft (DTM) was a touring car racing series held from 1984 to 1996. Originally based in Germany, it held additional rounds elsewhere in Europe and later worldwide.
The original DTM had resumed racing with producti ...
– The German Touring Car Championship
*
Deutsche Tourenwagen Masters
The Deutsche Tourenwagen Masters (DTM, German Touring Car Masters) is a grand touring car series sanctioned by ITR e.V. who have been affiliated to the DMSB-FIA since 1984. The series is based in Germany, with rounds elsewhere in Europe. The ser ...
*
Super GT
Super GT (stylized as SUPER GT) is a grand touring car racing series that began in 1993. Launched as the , generally referred to as either the JGTC or the All Japan Grand Touring Car Championship, the series was renamed to Super GT in 2005. It is ...
References
{{Class of Auto racing
Racing car classes
Touring car racing
Fédération Internationale de l'Automobile