I'm going to go with Maroon for my 2A's and D's. This image is from "Chaparral The Texas Roadrunner" book. The car has several changes from "Stock" starting with Goodyear Tires instead of Firestone's.
I watched the Race on TV last weekend. One of the Cars that Rolled somehow ended up with what looked like a 6' long 4x4 stuck over its right rear wheel. Kinda looked like he was getting ready to go Jousting!