The 2017 Mercedes-Benz AMG SL is a 2-door, 2-seat Convertible, available in 2 trims, ranging from the AMG SL63 to the AMG SL65. Upon introduction, the $151,350 AMG SL63 is equipped with a standard 5.5L, 8-cylinder, engine that achieves 16-mpg in the city and 25-mpg on the highway. An Automatic transmission is standard. The $219,850 AMG SL65 is equipped with a standard 6.0L, 12-cylinder, engine that achieves 14-mpg in the city and 21-mpg on the highway. An Automatic transmission is standard.