The 2019 Hyundai Ioniq Plug-In Hybrid is available as a 4-door, 5-seat hatchback. Starting at $25,350, the 2019 Hyundai Ioniq Plug-In Hybrid Base is powered by a 1.6L , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated The top of the line 2019HyundaiIoniq Plug-In HybridLimited , priced at $ 29,350 , is powered by a 1.6L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated