this post was submitted on 31 May 2024
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Oldtimers, Youngtimers and Vintage Motoring

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A community for everything old and youngtimers! That includes Cars, Bikes, Trucks, Bicycles and all other old Personal Vehicles!

Oldtimers are Defined as Vehicles 30 years or older, whereas Youngtimers are between 25 and 30 years of age!

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[–] [email protected] 1 points 4 months ago* (last edited 4 months ago)

The way the top slopes down on fastback cars draws air down with it, and creates a low pressure zone above the trunk, which results in a lifting force over the back wheels.

Edit: here’s a good 12 minute overview of common care shapes and aerodynamic drag and lift in 12 minutes.

https://youtu.be/n7EYKVEL7Ds