I am getting horrible gas mileage on my 2012 Hyundai Elantra. It is under 30 MPG while doing 55 MPH using cruise control on an open highway. The dealership treats me like a moron and promises me the moon and then thinks I will just disappear and somehow magically become a satisfied customer if they do nothing. The mileage rebate program is woefully insufficient. People need to know that these cars are not good on mileage to say the least.