The 2011 Audi R8 is available as a 2-door, 2-seat coupe. Starting at $149,000, the 2011 Audi R8 5.2 (M6) quattro Coupe is powered by a 5.2L , 10 -cylinder engine mated to a manual transmission that returns an EPA estimated 12-mpg in the city and 19-mpg on the highway. The top of the line 2011AudiR84.2 quattro Spyder , priced at $ 136,800 , is powered by a 4.2L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 13-mpg in the city and 21-mpg on the highway.