not 100% but i think its got a extra "blackbox" function .. which would make it a bit cooler then standard scangauge.
Quote:
Car Black Box
Finally but possibly most importantly this tool will be able to save up to 300 hours of your driving data. It works as a vehicle black box to store every trip you make. The information it records includes: 1.Time and date for each trip 2.Distance traveled each trip 3.Maximum speed during trip 4.Time overspeed 5.Number of times of extreme acceleration during trip 6.Number of times of extreme deceleration during trip 7.Numbers of hard accelerations and braking 8.Average speed 9. Average fuel consumption