The car had its origins as the A5 DTM, developed from October 2010 and first raced in the 2012 DTM season. Following the 2012 campaign, Audi renamed the car the RS5 DTM to align it with the RS5 production model in Audi's road car lineup. While the rebranding was cosmetic, the underlying platform underwent continuous technical development across the car's seven-year competitive life.
The RS5 DTM was powered by a custom-built, naturally-aspirated Audi 4.0-litre V8 engine producing approximately 460 hp (343 kW) and 500 N·m of torque. The engine featured four valves per cylinder, dual overhead camshafts, a 90-degree V-angle, and indirect fuel injection. Engine management was handled by a Bosch Motronic MS 5.1 ECU, with Bosch also supplying the CDI ignition system. The engine was mounted longitudinally at the front of the car. A 6-speed transmission with paddle shifters was retained throughout the car's competitive life.
The RS5 DTM's competitive debut came during pre-season testing at Circuit de Catalunya on 26–28 March 2013, with all Audi teams and drivers participating. Its official race debut followed at the 2013 Hockenheimring DTM round on 5 May 2013, where Audi Sport Team Abt's Timo Scheider took pole position.
For the 2013 season Audi entered eight drivers across four teams: Mattias Ekström and Jamie Green for Abt Sportsline; Mike Rockenfeller and Miguel Molina for Phoenix Racing; Timo Scheider and Adrien Tambay for Audi Sport Team Abt; and Filipe Albuquerque and Edoardo Mortara for Team Rosberg. Mike Rockenfeller claimed the 2013 DTM drivers' championship, a result that was subsequently celebrated with the release of a limited-edition production Audi A5 DTM road car.
In 2014 the car was redesigned and relaunched during the Geneva Motor Show on 4 March, having been developed internally under the codename "RC3." The updated specification reflected both regulation changes in the series and Audi's continued investment in DTM competitiveness.
After competing in the 2018 DTM season, the RS5 DTM was permanently retired following the second Hockenheimring round and post-season testing at Jerez. The car was replaced by the RS5 Turbo DTM from the 2019 season onwards, marking a broader shift in the DTM to turbocharged power units that transformed the technical character of the series.
The RS5 DTM era spanned six seasons of the most intensely contested period in modern DTM history, during which Audi locked horns with BMW and Mercedes-Benz across multiple title battles. The platform's longevity — essentially seven seasons from 2012 to 2018 under different names — speaks to the robustness of Audi Sport's original engineering work. The car's championship success, particularly Rockenfeller's 2013 title, made it one of the definitive racing machines of the V8 DTM era. Its retirement also marked the end of a broader DTM era, as the 2019 switch to turbo engines fundamentally changed the competitive landscape of German touring car racing.
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