The 2016 Audi A5 is available as a 2-door, 4-seat coupe. Starting at $40,500, the 2016 Audi A5 (M6) quattro Coupe is powered by a 2.0L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 22-mpg in the city and 32-mpg on the highway. The top of the line 2016 Audi A5 quattro Cabriolet, priced at $47,900, is powered by a 2.0L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 21-mpg in the city and 29-mpg on the highway.