The 2016 Nissan Frontier is a 4-door, 4-seat Regular Side, available in 32 trims, ranging from the S (M5) 4x2 King Cab to the SL 4x4 Crew Cab Long Box w/Leather Shift Knob. Upon introduction, the $18,290 S (M5) 4x2 King Cab is equipped with a standard 2.5L, 4-cylinder, engine that achieves 19-mpg in the city and 23-mpg on the highway. a Manual transmission is standard. The $36,110 SL 4x4 Crew Cab Long Box w/Leather Shift Knob is equipped with a standard 4.0L, 6-cylinder, engine that achieves 15-mpg in the city and 21-mpg on the highway. an Automatic transmission is standard.