Money 2021 Hyundai Elantra promises 50-mpg hybrid, more room, features March 18, 2020 Mark Phelan, Detroit Free Press Comments Off on 2021 Hyundai Elantra promises 50-mpg hybrid, more room, features Hyundai's new compact sedan adds a hybrid and advanced features to combat competitors like the Honda Civic, Toyota Corolla and Nissan Sentra.