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 50 until 1978, but the cheaper Volkswagen Polo outsold the Audi 50, and Audi discontinued the Audi 50 in 1978, after a total production of 180,812 units. A planned facelift, which would have given the Audi 50 a look closer to that of the Audi 100 and Audi 80 was never implemented, because of a holding company board decision that the Audi brand should concentrate on larger, more expensive cars. The Volkswagen Polo range continued to evolve, with the Volkswagen Derby notchback version, despite being developed by Audi at Ingolstadt, branded as a Volkswagen and launched in 1977. Subsequently, the Volkswagen