this post was submitted on 23 Jun 2025
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[–] ayyy@sh.itjust.works 9 points 2 months ago (3 children)

Because they were invented before computer simulations of airflow. It turns out they do exactly the opposite of what people thought and actually pull the car upwards instead of pushing it down.

[–] RickyRigatoni@retrolemmy.com 10 points 2 months ago (1 children)

What if I just want to look cool and have some sun shade for my rear window

[–] ayyy@sh.itjust.works 5 points 2 months ago (1 children)

Nothing wrong with that, you just can’t have that and a fast racecar.

[–] RickyRigatoni@retrolemmy.com 8 points 2 months ago (1 children)

I just remembered I drive a honda so I'm not getting a fast racecar no matter what I do

[–] ayyy@sh.itjust.works 15 points 2 months ago (1 children)

Sounds like you haven’t added enough vtec decals yet.

[–] jaybone@lemmy.zip 3 points 2 months ago

Did we really need computer simulations? Can’t you use like smoke and a leaf blower?

[–] grue@lemmy.world 2 points 2 months ago

I thought they were for preventing people from being able to see into the hatchback area without having to cut the cargo capacity in half with a parcel shelf.