Porsche 911 Polizei 1:43 scale analog slot car compatible with Carrera GO!!! Tracks Carrera Part No. 20064174 Each Carrera GO!!! slot car is fitted with replaceable double contact brushes for maximum contact with the slot car track while downforce magnets make for quick cornering and easier handling even for beginner racers GO!!! slot cars come in a wide variety of popular racecar and entertainment license themes This 1:43 scale analog slot car is compatible with all Carrera GO!!! Electric and Carrera GO!!! Battery-Operated Slot Car Racing Sets