The 2015 Mazda MAZDA5 is available as a 4-door, 5-seat wagon. Starting at $21,240, the 2015 Mazda MAZDA5 Sport is powered by a 2.5L , 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 2015MazdaMAZDA5Grand Touring , priced at $ 24,770 , is powered by a 2.5L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 21-mpg in the city and 28-mpg on the highway.