What If Build Ideas...for Land Speed Racing

https://www.speedwaymotors.com/Colored-Plastic-HDPE-Sheet-10-Ft-Rolled-1-8-Inch-Thick,1557.html

Black ABS Plastic Valance

Bumper Valance Material – Always In Stock

Here’s a few different links to similar products. I can’t find it on Karteks website but what they sell is the same stuff.
The Speedway stuff is 1/8" whereas the other is 3/16" which I think would be better. 3ea of 96" would be close for the nose and sides. Hmmmmm