Quote:
Originally Posted by Big Dave
If you insist on short (wheelbase and overall length) cars for ease of city operation, you inevitably wind up with a clown car or an X-box. Aero=brick. Or something vaguely hedgehog-shaped. To get better aero (hence better highway MPG) you have to have length. Greater length exacts a price in vehicle weight, but pays you back in capacity and lower (potential) coefficient of drag. For ultimate economy a long tandem vehicle could give you the balance of aero and weight.
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Erm... there are examples of sawn-off runt cars that have Cds in the .20s. They make me wonder about this fineness ratio thing.