If you have a version older than 4.02 you should def send your scangauge out for the update, it's only $25.

Here is the skinny on the new update: http://www.scangauge.com/tips-and-tr...mance-monitor/

Track your quarter-mile times and speeds at the track. ("at the track", ha ha!)
Determine your vehicle's 0-60 time.
Measure your vehicles braking performance
Save and Recall performance runs
Monitor specific Digital Gauges
and much more…
For those who bought a ScanGauge II after Jan 1, 2011 the upgrade is free. For the rest of us, the upgrade cost is $25 and I'd guess it would take 2-3 weeks(?) to mail it to Mesa, AZ and get it back.

To check on what version you have
http://www.scangauge.com/support/upgrade/