Just got this Gtech PRO RR... It measures the following: Horsepower, Torque, 60Ft, 1/8 Mile, 1/4 Mile, RPMS and Shift Point, Braking Distances and Handling the G's plus much more. Then the guy selling me this taught me a few tips on how to do a drag race properly and do a reverse flip... The reverse flip was quite easy, i got it right the 3rd time, maybe next time will try to flim it on a video... Meanwhile the video below is a demo of a reverse flip...