Audi Reveals R18-Inspired A1 At 2013 Wörthersee Tour

Audi reveals 503-hp A1 clubsport quattro for Wörthersee Tour 2011

Audi to bring seven custom-designed versions of A1 at the

Audi pushing the new A1 at Wörthersee Tour 2010 - Autoblog

Audi Reveals R18-Inspired A1 At 2013 Wörthersee Tour

Audi Shows Off R18 Le Mans Racer-Themed A1 Sports Hatch at

Audi R18 Le Mans Prototype Revealed

Audi to bring seven custom-designed versions of A1 at the

Audi A1 - Wikipedia

Audi at Wörthersee Tour 2013 - QuattroWorld

Audi A1 Competition Kit R18 - Car News