There are too many variables to say yes or no. Take any car... lets say a camry... obviously it will be worse if you remove the fenders. Now, take an F1 car and add fenders to it... now you just made two cars worse. Now, if the F1 car had street tires (tread), what kiwibacon said
Quote:
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Originally Posted by kiwibacon
"The boundary layer on the top of the tyre is doing twice the forward speed of the vehicle.)
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would come into effect (more so than with slicks, anyway) and the fenders would probably help, but still wouldn't be as good as slicks with no fenders. Now, put race slicks on that camry... nah, j/k, don't do that
and to answer your question to him, it means the top of the tire is moving forward, cutting through the wind at a speed of 2x the speed of the vehicle, which means 2x the wind resistance (at least) as opposed to having a stationary piece of metal in it's place (such as a fender)