Actually, I just posted it as a "ding ding" light bulb popped up over my head.

This all comes about from the arguments I have had on Edmunds with people about how the EPA tests are flawed.

I have always thought the test was "just as flawed" for ALL cars, but now I think it is "more flawed" when it comes to HEVs, because the car is being propelled with no GAS being burned, i.e. producing no measurable carbons, when the electric motors are in use, which will give an INFLATED mpg number.

So yes, that means to me that the test is MORE flawed in the HEV testing. Which is shown in part I think by the Prius having a 60 EPA and only averaging 48 at GH.COM, while the HCH, which CANNOT be propelled by EV alone during the test, has less of a discrepancy. The Prius in the test is running on electric far more than in real-world driving.