i've noticed the hole in the wheel dam on some other cars, i think the vw golf has this in some way, and i fiat minivan i seen on the road here sometimes...if i'm correct... i'd assume it's for break cooling as it seems to allow air to remain flowwing up into the arch in the video...
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aer·o·dy·nam·ics: the science of passing gass
*i can coast for miles and miles and miles*
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