sentences:  Competition kit R18 is based on the look of Audi R18 e-tron quattro race car and has been reinterpreted for the Audi A1 as competition kit R18 gray and R18 red.A version of Audi A1 with competition kit R18 was unveiled in Wörthersee Tour 2013.An A1 e-tron won the 2011 Silvretta Electric Car Rally.