This champ car roller and tub can be used as spares for an existing Reynard champ car or can be converted to a prototype /sports racer. Included is a carbon fibered tub, rear trans axel, with drive shafts, suspension arms, Rear hub assemblies, brake assemblies, and front steering assembly, front suspension controls arms, front hub assemblies and front brake assemblies. if interested please call John @ 843-247-9002, no offer refused.