The 2015 Mazda Mazda6 is a 4-door, 5-seat Sedan, available in 5 trims, ranging from the Sport (M6) to the Grand Touring (A6). Upon introduction, the $21,190 Sport (M6) is equipped with a standard 2.5L, 4-cylinder, engine that achieves 25-mpg in the city and 37-mpg on the highway. A Manual transmission is standard. The $29,895 Grand Touring (A6) is equipped with a standard 2.5L, 4-cylinder, engine that achieves 26-mpg in the city and 38-mpg on the highway. An Automatic transmission is standard.