The 2018 FIAT 500L is available as a 4-door, 5-seat hatchback. Starting at $20,995, the 2018 FIAT 500L Pop is powered by a 1.4L , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 22-mpg in the city and 30-mpg on the highway. The top of the line 2018FIAT500LLounge , priced at $ 23,895 , is powered by a 1.4L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 22-mpg in the city and 30-mpg on the highway.