* 2013 Audi S4

* 2013 Audi allroad

The same engine is shared with the Audi S5 Cabriolet ( though the 7-speed S Tronic is the sole transmission ) and the 2013 Audi S5 Coupe.

The Audi S6 and its mechanical twin S7 were released as a 2013 models, a year after the C7 Audi A6 was released.

The National Railway Museum hopes to have the loco returned to the UK on a loan period during 2013 to celebrate the 75th Anniversary of fellow A4 LNER Class A4 4468 Mallard's speed record of 126mph in July 1938.

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.

* 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.