Topic: What part constitutes "the car"?
2.1: Vehicle Eligibility: Entry limited to mass-produced, four-wheeled vehicles legal for US highway use at the time of their manufacture.
Is it the frame, body, or "we know it when we see it"?
For instance, this: 70s Pontiac frame, 60s Datsun body, 30s GM fenders, and a Ford drivetrain. No paperwork, naturally. So....eligible?