This is a limited Exclusive of ours. 
1970 Ford Mustang BOSS 429 sits on a 4-gear chassis.
1957 Chevy Nomad sits on a Xtraction Ultra G chassis.
1967 Shelby GT-500 sits on a Xtraction Ultra G chassis.
1970 Chevy Camaro Z28 sits on a Xtraction Ultra G chassis.
 
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!

DESCRIPTION
1:64 Scale/ HO Scale
3 Xtraction chassis and 1 four gear chassis
Includes 1 Ultra G Neodymium Traction Magnet
Authentic Graphics
Slot Cars are 100% Compatible with Tomy and AFX Sets