Audi Sport began development of the A5 DTM chassis in October 2010. The first chassis was assembled in May 2011, with the first completed car ready by late July of that year. Built at Audi Sport's facility in Ingolstadt, the A5 DTM was publicly revealed at the Frankfurt Motor Show on 12 September 2011. The car was designed under the direction of Wolfgang Dürheimer, then Audi's Head of Research and Development.
The A5 DTM retained the V8 engine architecture from its predecessor, a unit jointly developed by Audi and Neil Brown Engineering. The naturally-aspirated engine produced approximately 460 hp (343 kW) and was paired to a 6-speed transmission carried over from the A4 DTM. Steering wheel-mounted paddle shifters, Bosch MS 5.1 engine electronics, and a central display borrowed from the Audi R8 LMS were among the notable technical features. Wider Hankook tyres, a 32-gallon safety fuel tank integrated into the carbon fibre monocoque, and Zylon and Rohacell side-impact zones met DTM safety regulations. The carbon fibre integration of the fuel tank was designed specifically to reduce fire risk in the event of an accident.
At the start of the 2012 season, DTM homologation rules mandated an increase in minimum weight from 1,050 kg to 1,110 kg, a regulation that applied to all competing manufacturers.
The A5 DTM was homologated on 1 March 2012 and made its race debut at the 2012 Hockenheimring DTM round on 29 April 2012. In that first outing, Audi Sport Team Abt's Mattias Ekström took pole position.
For the 2012 DTM season, Audi fielded eight drivers across three customer teams. Abt Sportsline ran Mattias Ekström, Timo Scheider, Adrien Tambay, and Rahel Frey. Phoenix Racing entered Miguel Molina and Mike Rockenfeller. Team Rosberg fielded Filipe Albuquerque and Edoardo Mortara. The car's competitive debut was considered a strong start for the new platform, setting the foundation for multiple seasons of DTM competition.
After the conclusion of the 2012 season, the car was renamed the RS5 DTM to align it with the Audi RS5 production model introduced to the road car range. The underlying technical package remained essentially unchanged for 2013, with the car continuing to use the naturally-aspirated 4.0-litre V8. This renaming marked a branding evolution rather than a fundamental engineering overhaul, and the platform continued to be developed and updated across subsequent seasons under the RS5 DTM designation.
The Audi A5 DTM represented a significant moment in DTM history as it arrived during an era when Audi, BMW, and Mercedes-Benz were all developing new-generation touring car platforms. Its short single-season life under the A5 name belies the longevity of the underlying architecture, which went on to underpin six further years of DTM competition as the RS5 DTM. The production road car tie-in model — a limited-run special edition Audi A5 with DTM badging and styling cues — extended the car's public profile beyond the racetrack.
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