The 2007 Chevrolet Monte Carlo is a 2-door, 5-seat Coupe, available in 3 trims, ranging from the Base to the Base. Upon introduction, the $21,015 Base is equipped with a standard 3.5L, 6-cylinder, engine that achieves 21-mpg in the city and 31-mpg on the highway. an Automatic transmission is standard. The $27,740 Base is equipped with a standard 5.3L, 8-cylinder, engine that achieves 18-mpg in the city and 27-mpg on the highway. an Automatic transmission is standard.