Quote:
Originally Posted by aerohead
Aren't 'ALL' published EPA mpg values directly ascertained by the five different Mobile Sources dynamometer cycle certification protocols, and manufacturers have nothing to say with what is recorded, computed, and reported?
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It sounds like the manufacturer gets to pick their own correction factor. Everybody picks .7 while Tesla is picking .8 or more. Lots of real world results puts Tesla as the EV make least likely to meet their range claims. Probably due to their correction factor optimism. I don't see this changing on Teslas part, but I can see the others starting to use Tesla’s correction factor so that customers get apples to apples EPA ratings. The EPA should just mandate one number for everyone.