Greenlings: Where are the most important MPG increases?
The math shows that going from 12 to 15 mpg is better than 50 to 60.

Kia: Mass-produced fuel cell cars would cost $50,000 today
No, really, they say.

STUDY: Heavier cars get worse gas mileage. Who knew?
Unsurprising, but now there's a ream of data to prove it.
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