Built like a Nextel Cup Car without the Sponsors
The Challenge car chassis is built on the strong foundation of our world class Mk3 frame. Connected to that beautiful tube steel frame is an array of aluminum panels bonded and riveted in place like any good race car should be. Aluminum panels make-up the car’s sub-frame and liners. The entire cockpit, floors, side walls, firewall, dash, nose/radiator area, trunk and foot box are T6061 aluminum panels. The panels were designed using CAD/CAM technologies and incorporate the superior construction methods of modern auto racing and aerospace industries.