The 2018 Nissan LEAF is available as a 4-door, 5-seat hatchback. Starting at $29,990, the 2018 Nissan LEAF S is powered by a , 0-cylinder engine mated to an automatic transmission that returns an EPA estimated 125-mpg in the city and 100-mpg on the highway. The top of the line 2018 Nissan LEAF SL, priced at $36,200, is powered by a , 0-cylinder engine mated to an automatic transmission that returns an EPA estimated 125-mpg in the city and 100-mpg on the highway.