The 2018 FIAT 500 is available as a 2-door, 4-seat hatchback. Starting at $16,245, the 2018 FIAT 500 Pop is powered by a 1.4L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 28-mpg in the city and 33-mpg on the highway. The top of the line 2018FIAT500Abarth , priced at $ 20,495 , is powered by a 1.4L , 4 - cylinder engine mated to a manual transmission that returns an EPA estimated 28-mpg in the city and 33-mpg on the highway.