Buy a hardtop manual Iron Duke third-gen Camaro because those have the lightest body panels to offset the shitty engine's lack of power. Swap in a high-reving LS7 engine and six-speed. Install massive boxy bolt-on fender flares, ICE-9 suspension upgrades, rollcage, and headlight covers. Replace dash with LCD race gauges and shift lights.
Enjoy having my own street legal bulletproof IMSA-style third-generation Camaro racecar.