# Building a small model car, need some aerodynamic / physics help!

**URL:** https://forum.kirupa.com/t/building-a-small-model-car-need-some-aerodynamic-physics-help/218840
**Category:** random
**Created:** [March 11, 2007, 7:32pm UTC](https://forum.kirupa.com/t/building-a-small-model-car-need-some-aerodynamic-physics-help/218840 "2007-03-11T19:32:51Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![REEF](https://avatars.discourse-cdn.com/v4/letter/r/ce73a5/32.png) [@REEF](https://forum.kirupa.com/u/REEF)
#### Post date: [March 11, 2007, 7:32pm UTC](https://forum.kirupa.com/t/building-a-small-model-car-need-some-aerodynamic-physics-help/218840/1 "2007-03-11T19:32:51Z")

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Should I angle my car downwards or leave the slope at a level 0? I’m looking for the most aerodynamic car possible. Speed is a bonus, but distance is my objective, so I need a pretty good start and cant leave my car with a lot of stress on it. Is there a reason people angle wheelbarrows downwards or have smaller wheels in the front?

![](http://img384.imageshack.us/img384/1281/carslm1.jpg)

Looking for any ideas and if you do help, please explain in physics terms or just logic as to why your idea would make sense. I’m building a mousetrap propelled car btw.

\*edit: just to clear it up, it will only ride against other cars on flat surfaces.

Thanks.