These are BMW 320’s E-21 Clubracers

 Wheels: 8 X 13 Steel

 Tires: 22-7-13 Front,  22-9-13 Rear

 Motor: 2 Liter

 Carburetor:  Single side draft, custom manifold

 Exhaust: Headers, four in one

 Differential:  390

 Shocks:  KYB

 Bodywork:  Fiberglass fenders, hood, trunk lid, side skirts

and front spoiler

 Seat:  KYRBi aluminum racing