Audi has "leaked" images of its latest RS monikered performance car, the TT RS. Sporting five-cylinder power, it blends performance heritage and contemporary style. However, Audi is still coy concerning TT RS product details. Officially all Audi are willing to admit to before the car’s Geneva show debut, in less than two weeks, is garden variety Audi engineering clues. It will be feature quattro all-wheel drive and a six-speed transmission – probably DSG enabled…Details are still sketchy, but chassis and brakes are beefier than TT S, and rear honeycomb lower fascia denotes sporting intentions. Powering the TT RS will be a 2.5l five-cylinder turbocharged engine rumoured to produce 253kW and 450Nm. Engine architecture equates to a neat 500cc per cylinder, which should ensure linear, smooth power and a unique acoustic quality. Although power numbers are only to be confirmed at Geneva, Audi seems willing to stir up a performance debate before the show, baiting enthusiasts by saying the TT RS will need ‘nowhere near five seconds’ for a 0-100km/h sprint.Audi traditionalists will be heartened by the return of a five-cylinder RS badged car, recalling phenomenal five-cylinder Audi turbocharged cars from the past - including the original 2.2l quattro and seminal RS2 Avant.