What's the performance difference between 15 inch, 16 inch and 17inch tires (all else equal)?
On 07/20/2017 05:59 AM, Mad Roger wrote:
Doing a quick search, Car & Driver says the EPA gets to 1% with what
appears to be a 350 million dollars investment in tools.
The EPA has a much more complex problem. They are not measuring the fuel
economy of a particular vehicle in the short term. They are attempting
to compare apples and oranges
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