How do I go about increasing fuel economy?
Is the fuel economy better in used cars?
What is the best car for fuel economy?
What is the fuel economy of a Smart Car?
What kind of fuel economy do Chevrolet cars get?
What will I gain from a poor fuel economy diagnosis?
Where can I get an estimated taxes form?
cars how does it work
Question by zagonmom (23)
It seems like they're WAY higher than reality.
Answer by technogeek (6640)
The use physics and mathematical equations to determine, based on the size of the gas tank and the weight of the car, how far it can go.
Answer by theguy (11)
The companies test drive the cars for city and highway driving. For city driving they drive low speeds with a lot of stop and go's. For highway they drive at 60 mph.
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