The Backfire is one of the worst cars in the game. According to some. Unsurprisingly, this makes it my favorite. The model file is gigantic, and should be printed at the finest resolution you can use. Mandatory resizing of wheels is mandatory.
Printer:
Monoprice Maker Select Mini
Rafts:
Doesn't Matter
Supports:
Yes
Resolution:
0.13125
Infill:
15-20%
Using Reddit user Kyokenshin's models directly from the game, and using MakePrintable to, well, make it printable.