The 2006 Maserati GranSport is available as a 2-door, 4-seat coupe. Starting at $98,872, the 2006 Maserati GranSport Base Coupe is powered by a 4.2L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 12-mpg in the city and 19-mpg on the highway. The top of the line 2006MaseratiGranSportSpyder , priced at $ 99,900 , is powered by a 4.2L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 12-mpg in the city and 19-mpg on the highway.