Audi Sport GmbH grew out of the motorsport demands of Group B rally in the early 1980s. Because Group B required road-car homologation, Audi established quattro GmbH in 1983 to conceive and engineer the necessary production vehicles. The result was the Audi Sport Quattro, known as the S1 in full race specification. Audi AG produced the race variant and the 200 road units required for homologation; the management of customer racing was later spun into the quattro division at Neckarsulm.
With the BMW M division as a model, Audi AG collaborated with Porsche AG to develop the Audi RS2 Avant, built at Porsche's Zuffenhausen plant between 1994 and 1996. All subsequent RS cars have been produced solely at Neckarsulm. Stephen Reil became head of Quattro and oversaw the development of the first in-house RS car, the 2000–2001 B5 RS4 Avant quattro. The subsidiary expanded steadily, recruiting from Audi AG, motorsport projects, and competing manufacturers.
The RS designation — short for RennSport, meaning "racing sport" — represents Audi's highest performance trim level, positioned above the S specification. Audi Sport designs and produces all RS models in conjunction with Audi AG, typically building them in limited numbers with the latest engineering the company offers.
Core products have included the RS3, RS6, and RS7 Sportback. Audi Sport also designs wheels, sport suspension components, and body panels for Audi's wider S line trim range, though S line cars are assembled at standard Audi AG factories rather than at Neckarsulm.
The Audi R8, a two-seat mid-engined sports car, was designed, developed, and produced exclusively by Audi Sport, with a dedicated production line established following a €28 million investment. The base R8 used a 4.2-litre FSI V8 derived from the B7 RS4, modified with a dry sump system; a subsequent V10 variant used a detuned version of the 5.2-litre FSI V10 from the Lamborghini Gallardo LP560-4. Audi Sport also developed a diesel R8 concept, the R8 V12 TDI, using a 6.0-litre V12 engine derived from Audi's Le Mans endurance racing programme.
Audi Sport-produced cars manufactured at Neckarsulm carry the VIN prefix WUA, as distinct from WAU used on standard Audi AG production.
Audi re-entered motorsport in the 1980s following the Auto Union era, competing in rally, IMSA racing, and DTM. In 1988, Audi Sport produced the Audi 200 Trans Am for the US market; when AWD was subsequently banned, the programme moved to IMSA with the 700 hp Audi 90 IMSA GTO. Audi then contracted quattro to develop a DTM car based on the Audi V8 flagship, refocusing on the German market.
Before the 2016 rebrand, factory endurance efforts — including the Le Mans campaigns — were handled under the Audi Sport banner, while customer racing was managed by quattro GmbH. These entities collaborated technically but operated separately. After the rebrand, Audi Sport assumed responsibility for customer racing as well, with the Audi RS3 LMS TCR and Audi R8 LMS GT3 as the primary customer racing products.
The RS3 LMS TCR, launched in 2016 and based on the road-going RS3, features the EA888 2.0T engine producing approximately 350 hp and was offered initially with either an S-tronic dual-clutch or sequential gearbox option. The R8 LMS GT3, producing approximately 580 hp, achieved considerable commercial and competitive success before being discontinued in 2024, with Audi Sport pledging ongoing support through 2030. Despite diminishing numbers in racing series through the early 2020s, an R8 LMS achieved pole position at the 2025 Nürburgring 24 Hours.
The professional race drivers involved in Audi's Le Mans and DTM programmes also contributed to RS road car development, testing around the Nürburgring and the roads near Neckarsulm, helping to define the RS models' characteristic balance of neutral handling, low noise and vibration, and performance.
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