The 2018 Hyundai IONIQ Hybrid is available as a 4-door, 5-seat hatchback. Starting at $22,200, the 2018 Hyundai IONIQ Hybrid Blue is powered by a 1.6L , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 57-mpg in the city and 59-mpg on the highway. The top of the line 2018HyundaiIONIQ HybridLimited , priced at $ 27,550 , is powered by a 1.6L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 55-mpg in the city and 54-mpg on the highway.