really the reasons to GET this just keep stacking when u think about it. it has a tach so u can tell if u hit peak rpm in the straight away at your track.....use the g-force sensors to find the best set-up on suspension and tires...also just to see how quick it can leave the line and how well your car breaks.....watch for power spikes in your packs and motor and even watch to see if thoae cooling fins really work or not...and also it has a speedo
almost all types of 1:1 racing will have some type of data logger onboard....F1 even has a real time set up so the pic crews can see what the car is doing while it's on the track