The center console screen states one thing, the instant economy gauge states another and, the simple math division test basically (logically) states the CORRECT gas mileage, which is not off by a few miles per gallon but, by many.

FORBES: EPA Slams Hyundai And Kia For Overestimating MPG

The fuel economy mileage that appears on window stickers of new vehicles is calculated through a test that puts a vehicle through a standardized drive cycle designed by the EPA. The EPA then relies on auto manufacturers to conduct the test, and certifies that the vehicles have been tested.

FORBES: Your Mileage May Vary, Automakers Admit