2020 Hyundai Sonata Hybrid is a 54-mpg green-tech highway machine

If you drive a lot on the highway and think mileage really matters, yet you’re still not ready to turn in your gas card for a charging-network app, the 2020 Hyundai Sonata Hybrid might prove the perfect choice when it arrives in a few months. With the Sonata Hybrid’s debut at the 2020 Chicago Auto Show on Thursday, Hyundai announced a…