Question: are hyundai's good on gas?
Answer: Which Hyundai Models are the Most Fuel Efficient? ... You can opt for the fuel-efficient 2018 Hyundai Ioniq Hybrid, which returns up to 58 combined mpg. Or, you can test-drive the 2018 Hyundai Elantra, which returns up to 40 highway mpg with its fuel-efficient gas engine.