Audi's Quattro GmbH sports car division has its work cut out lately. Apart from the RS5 Convertible, the RS4 Avant and rumored RS7, the company's engineers are also developing the RS1 based on the A1 premium supermini.
Captured here by our crafty spy photographers while testing in and around the Nürburgring race circuit, the prototype sports typical RS-styling traits such as the prominent front bumper air vents, a large rear wing and a rear diffuser with space for two bulbous tail pipes.
