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Old 04-15-2020, 07:33 PM   #42 (permalink)
Ecky
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ND Miata - '15 Mazda MX-5 Special Package
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Quote:
Originally Posted by freebeard View Post
It's a multiplier.

Find a black on white silhouette of the two models, apply a Gaussian Blur filter to it's max and read the RGB value for each. The difference should be proportional without a lot of fussy outlining.
Or you could go into a parking lot and wrap a rope around someone else's 2nd gen Insight at its widest point, and measure the circumference. Do the same with the Crosstour.

Cd is a coefficient, it's multiplied by the area of the vehicle that faces the wind to get drag. A vehicle's size does not impact it's Cd. CdA (coefficient of drag x area) is larger on a large vehicle, however.
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