Oh Really?

KCRA Teevee - Sacramento

And under these guidelines by the
Environmental Protection Agency, carmakers are allowed to test miles per gallon by running the vehicle not on the road, but on what's essentially a treadmill for cars.

During an EPA spot check, the car ran with no air conditioning, no inclines or hills, no wind resistance and at speeds no greater than 60 mph.
[...]

Duh.