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.

Vehicles that are returned to near factory specifications, through a process that goes beyond routine maintenance and upkeep. Restored may include vehicles with modifications that preserve a period-correct engine and body.

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.