Audi A4 DTM

Audi
Audi A4 DTM
Production period:	2004-2011
Class :	race car
Racing series	DTM
Body versions :	limousine
Engines:	Otto engine : 4.0 liters (approx. 340 kW)
Length:	4800 mm
Width:	1750 mm
Height:	1250 mm
Wheelbase :	2750 mm
Empty weight :	1050 kg
Previous model	Abt-Audi TT-R
successor	Audi A5 DTM

Audi A4 DTM is the name of prototype racing cars from the German automobile manufacturer Audi , which were designed for exclusive use in the DTM . The A4 DTM was manufactured in six development stages, which bear the internal production names R11 , R12 , R12 plus , R13 , R14 and R14 plus . The A4 DTM replaced the Abt-Audi TT-R , which was used in series production between 2000 and 2003 . From 2004 to 2011 the A4 DTM competed there against the DTM AMG Mercedes C-Class and in the first two years also against the Opel Vectra GTS V8 .

Comeback as a works team

After Team Abt fielded a privately developed Abt-Audi TT-R between 2000 and 2003 and won the title with Laurent Aïello in the 2002 DTM season , Audi returned to the DTM as a works team in 2004. The successful debut in the series ended with all titles (driver, team, manufacturer) of the championship.

Stages of development

Source:

Surname	introduction
R11	2004
R12	2005
R12 plus	2006
R13	2007
R14	2008
R14 plus	2009

technology

As with all DTM racing cars, the shape of the body of the A4 DTM is reminiscent of a production vehicle, here the Audi A4 . Is the prototype constructed with a monocoque - chassis of carbon fiber reinforced plastic with integrated 70-liter fuel tank. Since refueling was still compulsory in the race at that time, a 120-liter tank was not installed as in 2012. The A4 DTM is powered by an uncharged V8 engine with a displacement of 4 liters, which, with an air flow limiter, produces around 340 kW (≈ 460 hp) and has a maximum torque of more than 500  Nm . The power is transferred via a multi-plate clutch with three carbon fiber-reinforced discs to the sequential six-speed sports transmission, which is combined in one housing with the adjustable multi-plate limited-slip differential on the rear axle. All wheels are individually suspended on double wishbones , the internal spring-damper units are operated via push rods and rocker arms.

tires

The tires were supplied by the then DTM standard equipment supplier Dunlop and had the dimensions front: 265/660-R18, rear: 280/660-R18.

Driver championships

Source:

2004	Mattias Ekström
2007	Mattias Ekström
2008	Timo Scheider
2009	Timo Scheider
2011	Martin Tomczyk

successor

For the 2012 DTM season , the successor was presented with the Audi A5 DTM . He competes against the new BMW M3 DTM and the DTM AMG Mercedes C-Coupé .

Web links

Commons : Audi A4 DTM  - collection of images, videos and audio files

Individual evidence

1. ↑ DTM season 2004 ( Memento from January 2, 2015 in the Internet Archive )
2. ^ Johan Laubscher: Audi Sport "R" Number History For Racing Cars. Audi Motorsport Blog, January 26, 2012, accessed on September 12, 2013 . 
3. ↑ Audi A4 DTM - autozeitung.de ( Memento from February 25, 2015 in the Internet Archive )
4. ↑ DTM history 1984–2012 ( Memento from January 28, 2013 in the Internet Archive )