 I bought 2012 Sonata Hybrid last week, I drove on the local roads & highway, It's averaging 36.I was expecting 40mpg on highway, but it was 38 only on highway.Car has great interior, beautiful exterior, comfort ride.I love it.I guess, the mileage will improve after 1st oil change.. not sure, willsee.Still 36 is okay mileage compare to other cars.