RacePak CL1 Karting Data SystemRacepaks D3 data system represents an entirely new concept in data analysis. You, your driver, and anyone you choose to include can review data in real time including speed, rpm, brake modulation and even engine metrics. Every feature you are used to from the other data systems just better and more accurate. Google map overlays and high resolution graphing analysis allowing you to easily understand where driver and kart performance gains can be found.