Do holes in your rear bumper really make you faster?


Nice thread revival :D Still relevant tho! Although the logic is sound and the graphs look nice I'd be careful about drawing conclusions based on just two runs.... It is still nice to see people try these things and sharing their results tho!
 
After a few tests, with half bumper (bottom part cut at the edge of curve / straight parts) plus holes the performance difference is even more noticeable ;)
 
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