The 2007 Audi Q7 is available as a 4-door, 5-seat sport utility. Starting at $49,900, the 2007 Audi Q7 4.2 is powered by a 4.2L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 14-mpg in the city and 19-mpg on the highway. The top of the line 2007AudiQ73.6 Premium , priced at $ 45,900 , is powered by a 3.6L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 20-mpg on the highway.