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Originally Posted by JulianEdgar
That's right - and a Cd of 0.28 is pretty bad in a current context.
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How so, when the Gen1 Honda Insight is 0.25?
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Well, we're talking about legal road cars, aren't we? I talk about a 'production car' to differentiate it from a concept car, a research car, a solar car, a one-off special, etc, etc.
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For me, the idea is to have a street-legal car that's likely patterned after one of the said types of cars that has a verified drag coefficient that's
lower than any production cars'.
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The Fiat was a one-off research vehicle and didn't have a Cd of 0.14.
"That its drag would be low was suggested by tests of a one-fifth-size model in the Turin Polytechnic's tunnel that showed a drag coefficient of only Cd=0.14."
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Would you say the car necessarily has a higher drag coefficient? I could see a scale model missing some drag that the fully functioning car has. But are scale models inaccurate due to size?
The Wikipedia page claimed it was the lowest drag car for 30 years. It seems that low number would've been challenged in that time, but then again, maybe not.