2018 BMW 640
The 2018 BMW 640 is a 2-door, 4-seat Convertible, available in 2 trims, ranging from the RWD to the AWD. Upon introduction, the $86,700 RWD is equipped with a standard 3.0L, 6-cylinder, engine that achieves 20-mpg in the city and 29-mpg on the highway. an Automatic transmission is standard. The $89,700 AWD is equipped with a standard 3.0L, 6-cylinder, engine that achieves 19-mpg in the city and 28-mpg on the highway. an Automatic transmission is standard.