The 2018 Hyundai IONIQ EV is available as a 4-door, 5-seat hatchback. Starting at $29,500, the 2018 Hyundai IONIQ EV Electric is powered by a , 0-cylinder engine mated to an automatic transmission that returns an EPA estimated 150-mpg in the city and 122-mpg on the highway. The top of the line 2018 Hyundai IONIQ EV Limited, priced at $36,000, is powered by a , 0-cylinder engine mated to an automatic transmission that returns an EPA estimated 150-mpg in the city and 122-mpg on the highway.