The 2013 Audi A3 is available as a 4-door, 5-seat hatchback. Starting at $27,270, the 2013 Audi A3 2.0T (M6) FrontTrak FrontTrak is powered by a 2.0L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 21-mpg in the city and 30-mpg on the highway. The top of the line 2013AudiA3(S tronic) quattro quattro , priced at $ 30,850 , 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 28-mpg on the highway.