Cars - For Car Enthusiasts

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ELI5: Why is there a grill in front of the front door in on this car? (upload.wikimedia.org)

submitted 2 months ago by Safipok@lemmy.ml to c/cars@lemmy.world

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cross-posted from: https://lemmy.ml/post/26201585

So, I don't know much about cars, but I generally expected for that part to be flush with the body. Is there any reason for there to be a grill like thing in front of the front door?

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[–] banghida@lemm.ee 7 points 2 months ago (6 children)

To appear sporty

[–] Safipok@lemmy.ml 2 points 2 months ago (5 children)

Is that an enthusiast thing? I initially thought it was a manufacturing defect.

[–] Etnaphele@lemmy.world 19 points 2 months ago* (last edited 2 months ago) (4 children)

It should be a pressure relief channel coming from the wheel arch: wheel rotation creates a complex air flow and I think this channel lets trapped air flow outwards (and stay attached to the vehicle sides, improving aerodynamics). Probably I got much wrong and more probably still, it’s of no real use for a road car driving under 200km/h.

Edit: could also be linked to brake cooling, now that I think of it…

[–] safesyrup 6 points 2 months ago (1 children)

I support your answer with my basic knowlede of car aerodynamics. Since this duct is so small, i highly doubt it has a significant or even measurable effect. Brake cooling would make sense though especially in a sporty electric vehicles that often suffer from brake overheating.

[–] ShepherdPie@midwest.social 1 points 2 months ago

Isn't most of the braking going to be done by the regenerative braking system rather than the pads and rotors?

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