Audi TT a 'show car', Audi has not ruled out the possibility of small-scale production. With its world debut at the 2009 Geneva Auto Show, and developed by Audi's high-performance subsidiary quattro GmbH at Neckarsulm, Germany, Audi released the first ever compact sports car Audi "RS" variant – the , which was available from 2009 in Coupé and Roadster variants. The TT RS featured an all-new 2.5-litre Inline-5 turbocharged petrol engine. This new engine produces a DIN-rated power output of from 5,400 to 6,700 rpm, and torque of at 1,600–5,300 rpm. Ever since the original Audi "RS" model – the Audi RS2
Audi TT claim average fuel consumption for the Coupé variant with this 2.0 TDI engine is , which achieves a CO emissions rating of 139 gram/km. The Roadster TDI achieves an average and CO of 144 gram/km. As an additional package a standard Audi TT can be bought from factory with a special body kit upgrade to make it look like the Audi TT-RS version. The upgrade includes a fixed rear spoiler, and Alcantara/leather sports seats (Silk Nappa, Fine Nappa leather optional). At the 2008 North American International Auto Show (NAIAS) in Detroit, Audi released the first Audi "S" model of the