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Old 07-10-2021, 05:06 PM   #3 (permalink)
Ecky
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Join Date: Dec 2011
Location: New Zealand
Posts: 5,098

ND Miata - '15 Mazda MX-5 Special Package
90 day: 39.72 mpg (US)

Oxygen Blue - '00 Honda Insight
90 day: 58.53 mpg (US)
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All high economy cars (even economy "supercars") come with narrow tires. Those that take it farther use narrow, larger diameter tires (see BMW i3). I can't tell you the math behind it, but this is pretty much universal across all OEMs.
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