Comes from set 20302 grand tourisme carrera exclusiv. Still in original bundle from the racing set. Believe these to be part 124455 but don’t see this number embossed anywhere. This set of 11 Carrera Exclusiv & Evolution straight slot car tracks is a must-have for any slot car enthusiast. Made by the renowned brand Carrera, these tracks are of top-notch quality. The set includes both Exclusiv and Evolution tracks – 1/32 and 1/24 cars.