The 2014 Maserati GranTurismo is available as a 2-door, 4-seat coupe. Starting at $126,500, the 2014 Maserati GranTurismo Sport Coupe is powered by a 4.7L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 13-mpg in the city and 21-mpg on the highway. The top of the line 2014MaseratiGranTurismoMC Convertible , priced at $ 153,400 , is powered by a 4.7L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 13-mpg in the city and 20-mpg on the highway.