The 2008 Mazda Mazda6 is available as a 4-door, 5-seat sedan. Starting at $24,840, the 2008 Mazda Mazda6 i Grand Touring (A5) Hatchback is powered by a 2.3L , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 21-mpg in the city and 28-mpg on the highway. The top of the line 2008MazdaMazda6S Sport VE (A6) Hatchback , priced at $ 24,160 , is powered by a 3.0L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 25-mpg on the highway.