The series has survived this hurdle and remained popular with 18 Audi A4 and Mercedes-Benz C-Class contesting the present series.

Audi will switch from their A4 model and use the A5, Mercedes will use the Coupe version of their C-Class and BMW have announced their addition to the competition with their M3 Coupe.

Audi has yet to produce a hardtop convertible as of 2011, since they include quattro as standard equipment in their convertibles ( after the discontinuation of the 2007 Audi A4 2. 0T cabriolet ) which already adds extra weight.

A version manufactured by ZF is also being offered on the latest Audi S4 and Audi A4.

* 2013 Audi A4

* 2003 Audi A4 Cabriolet

It was based on the Volkswagen Group A4 ( PQ34 ) platform and, as such, shared many components in common with other VW Group models such as the Volkswagen Golf Mk4, Bora and Audi A3.

* B5 platform, the series designator for Audi A4 from 1994 – 2001

Its PL45 platform was shared with the first-generation " Typ 8D " Audi A4, which was unveiled 2 years earlier, and saw a return to the Passat sharing its platform with Audi's equivalent model for the first time since the second-generation ( B2 ) Passat, which shared its platform with the second-generation " Typ 81 " Audi 80 / Audi 90 ( the A4 is the successor to the Audi 80 line ).

The 1. 8 litre petrol engine in the Passat and Audi A4 has a lower oil capacity than transverse applications of the same engine ( 4. 6 quarts in transverse, 4. 3 quarts longitudinal ), and may suffer from oil sludge problems as a result, if not changed at regular intervals with fully synthetic oils.

Unlike its predecessor, the B6 Passat no longer shared its platform with Audi's equivalent model ( the Audi A4 ).

Audi has, since 2000, offered a chain-type CVT ( multitronic ) as an option on some of its larger-engine models, for example the A4 3. 0 L V6.

After the A4, the Audi A3 was the second model in the Audi lineup to use five valves per cylinder.

Codenamed R17, the Audi A5 DTM is a race car designed for the DTM beginning in year 2012, replacing the Audi A4 DTM.

The Golf VII, Typ 5G will use the new MQB platform, shared with the new Audi A3, new SEAT León and upcoming Škoda Octavia.

It shared the internal designation Typ 86 with the Audi 50.

The Touareg ( internally designated Typ 7L ) was a joint venture project developed by Volkswagen Group, Audi, and Porsche.

Audi redesigned the 80 on the B2 platform ( Typ 81 ) in 1978 in Europe, and in 1979 ( as a 1980 model ) in North America.

Mid-1984, for the 1985 model year, Audi gave the B2 a subtle facelift with tail lights resembling the ones of the Typ 44 Audi 100, and different front and rear bumpers and headlights and an updated interior.

In September 1986, Audi released a new Typ 89 Audi 80 for the 1987 model year on the European market and introduced it elsewhere within a year.

Although often called the B3 even among knowledgeable Audi enthusiasts, the official and correct nomenclature was its production code Typ 89 from 1987 to 1989, and Typ 8A from 1990 onwards.

The original A3 ( or Typ 8L ) was introduced in the European market in 1996, marking Audi's return to the production of smaller cars following the demise of the Audi 50.

The Audi A2 ( internally designated Typ 8Z ) is a compact MPV-styled supermini, and a five-door hatchback with four or five seats., produced by the German automaker Audi AG from November 1999 to 2005.

* Typ 8X ; internal designation for Audi A1

The Audi A8 ( Typ 4D ) debuted in Europe in 1994, with factory production commencing June 1994, although it was not until the 1997 model year that it became available in North America.

The first generation Audi A4 ( known internally as the Typ 8D ) debuted in 1994, with production starting November 1994.

The Audi 50 ( known internally as the Typ 86 ) is a supermini economy car produced by German automaker Audi from 1974 to 1978 and sold only in Europe.

The designation " B6 " is used to identify the " Typ 8E " Audi A4 / S4 produced from late 2000 to 2005.

* Audi S4 ( Typ 8E / 8H ( saloon: 8E2, Avant: 8E5 ) / 8H7 ( Cabriolet ), 2003 – 2005 )

The B7 A4 / S4 retains the Typ 8E / 8H numbers of the B6 A4 / S4, though with different suffixes, while the SEAT Exeo though it has derived from the Audi A4 B7 takes the Typ 3R number.

At the time, Volkswagen lacked an internal research and design division, and Porsche was doing the bulk of the company's development work, per a deal that went back to the 1950s ; in keeping with this history, Porsche was contracted to develop a new sporting vehicle with the caveat that this vehicle must work with an existing VW / Audi I4 engine.

This car was sponsored by Beverly Porsche / Audi.

The body was built on the basis of Simca 1307, while longitudinal engine placement and torsion-crank rear suspension and McPherson strut front suspension was inspired by Audi 80 / 100 family, while taking into account the larger size of the Moskvitch and Lada engines.

The road car engine aspect of the business was split from the racing division following the sale of the engineering division of Cosworth to VW / Audi in September 1998 and renamed Cosworth Technology, before being acquired by Mahle GmbH in 2005.

Mercedes and Audi currently offer a feature that routes a heating duct to the neck area of the seat on SLK, SL and A5 / S5 models, marketed as the " Air Scarf ".

** Tom Kristensen / Rinaldo Capello / Seiji Ara driving an Audi R8 with Audi Sport Japan Team Goh win the LMP1 class and overall victory in the Le Mans 24 Hours.

The Audi S-5, 2226 cc, 4v / cyl, was also used on the Italdesign Aztec.

In 1973, Volkswagen marketed the Passat / Dasher hatchback, followed by the Golf / Rabbit designed by Giorgetto Giugiaro, as well as the Audi 50 / Volkswagen Polo in 1974.

** the team of Walter Röhrl / Christian Geistdörfer won the Monte Carlo Rally driving an Audi Quattro

The Omni had been designed alongside the Chrysler Horizon with much input from the Chrysler Europe division of the company ( evidenced by many examples having VW / Audi engines ), which Iacocca axed in 1978.

Many other turbo-charged cars, particularly where the aesthetics of the car are not to be compromised by unattractive top mount scoops, such as the Toyota Supra ( JZA80 only ), Nissan 300ZX Twin Turbo, Nissan Silvia ( S13 / 14 / 14a / 15 ), Nissan 180sx, Mitsubishi 3000gt, Saab 900, Volkswagen, Fiat Multipla, Audi TT, and Turbo Mitsubishi Eclipse use side-mounted air-to-air intercoolers ( SMIC ), which are mounted in the front corner of the bumper or in front of one of the wheels.

Zennström's newest yacht Rán IV ( TP52 design by Judel / Vrolijk, 2011 ) was launched in Palma to take part in the highly competitive Audi MedCup.

Most Phaeton engines, the W12 being the notable exception, are built at the VW / Porsche / Audi engine plant in Győr, Hungary.

One example is the Audi R18 e-tron quattro ( winner of race, the first ever hybrid / 4WD to win Le Mans ), utilizing an electric motor in the front axle while combining the engine motor in the rear.

* Audi V8, a 1988 large luxury saloon / sedan

The first Passat was developed partly from the Audi 80 / Fox and, until 2005, the two shared a history.