This is the Auto World 1971 Plymouth GTX (Yellow) Xtraction Flamethrowers R33 HO Slot Car.
The X-Traction chassis is a modified version of the classic pancake design used in Auto World's ThunderJet Chassis. Increased weight and larger rear wheels provide better performance and superior handling. Underneath, and Ultra-G neodymium traction magnet adds even more track-gripping handling through the tightest curves for maximum racing excitement!
Ultra G Neodymium Traction Magnet for Track Gripping Performance
Compatible with most HO scale tracks - AFX, Aurora, Tomy, Tyco, Auto World