The 2021 Hyundai Sonata Hybrid is available as a 4-door, 5-seat sedan. Starting at $27,750, the 2021 Hyundai Sonata Hybrid Blue is powered by a 2.0LL , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 50-mpg in the city and 54-mpg on the highway. The top of the line 2021HyundaiSonata HybridLimited , priced at $ 35,300 , is powered by a 2.0LL , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 45-mpg in the city and 51-mpg on the highway.