This is the OK USED CARS Auto World 1969 Pontiac GTO Convertible (Green) Thunderjet HO Slot Car The ThunderJet Ultra-G chassis is Auto World's improved adaptation of the classic "pancake" design, originally developed by Aurora in the early days of electric slot racing. Auto World expanded the design by adding a Neodymium magnet for better control. Still immensely popular today, entire slot racing events are created around this chassis. This is retro slot racing at its best! Features - Thunderjet "T-Jet" Ultra-G Chassis - Classic Pancake Motor - Neodymium Traction Magnet for Track Gripping Performance - Compatible with most HO scale tracks - AFX, Aurora, Tomy, Tyco, Auto World