The 2020 Nissan Altima is available as a 4-door, 5-seat sedan. Starting at $24,300, the 2020 Nissan Altima 2.5 S FWD is powered by a 2.5L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 28-mpg in the city and 39-mpg on the highway. The top of the line 2020 Nissan Altima Platinum AWD, priced at $33,750, is powered by a 2.5L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 25-mpg in the city and 35-mpg on the highway.