Quote:
Originally Posted by aerogreen
Most downforce increasing methods also increase drag.
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The word here is "most".
If we to stray the conversation for a moment to include some of Luigi Colani's 300 mph Corvette designs we would perhaps find some exceptions to the rule.
Luigi Colani Corvette
The rear spoiler on the MIT comparative examples might be more an indication of getting power down to the road via torque than anything to do with a lower Cd.
For example I know that I can launch my pick-up truck faster off the line with two sand bag tubes over the rear axle. I would not argue that I got faster 0-60 times because these sand bags lowered my Cd.