The ThunderJet Ultra G chassis is Auto World's adaptation of the classic "pancake" design, originally developed by Aurora in the early days of electric slot racing. Still immensely popular today, entire slot racing events are created around this chassis. It continues to be a favorite with collectors and hardcore drivers. Closer to HO scale, ThunderJet bodies mount over the chassis using two small screws. ThunderJets are retro slot racing at its best!
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, an Ultra-G neodymium traction magnet adds even more track-gripping handling through the tightest curves for maximum racing excitement!
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