This 1971 Mustang desert racer began as a Revell 1/25 scale Boss 351. Brady Wallskog scratchbuilt the rear tub for spare tires, 3D printed a widebody kit and racing wheels, built the off-road suspension, and swapped in a 428 Cobra Jet along with a racing interior. Going for a clean, pre-race look, Brady didn’t weather the flat, nitro-yellow finish.