The Yesterday & Today X-Traction is an exciting addition for slot car racing enthusiasts, featuring a modified chassis based on the classic pancake design found in Auto World's ThunderJet Chassis. This innovative design incorporates increased weight and larger rear wheels, resulting in enhanced performance and superior handling. To further elevate your racing experience, the X-Traction chassis is equipped with an Ultra-G neodymium traction magnet that ensures exceptional grip on the track, allowing racers to navigate tight curves with maximum control and speed.