Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.

Vehicles that are partially operable or non-operable that are suitable for restoration or customization.

Vehicles with a period-correct engine and body, with multiple significant modifications such as change in color, increased displacement, added performance equipment (Turbo, Supercharger), spoilers or bumpers, etc. Generally, removable modifications.