I know this may not quite be the place to post this but there are a handful of people on here that track their car, maybe it could be useful for rally cross too, not really sure. I'm selling my MaxQ data 5hz gps acquisition setup, looking to upgrade. For those that don't know what it is, applications and features. The one I have is the 5hz gps, not currently sold. It pairs with a pda/phone to provide on the fly data, no internal memory. Works great at the track with heads up lap times, predictive lap times, G forces, ect. I've been using this at the track and autocross for the past 2 or so years. It's helped me pinpoint a lot of small errors that would have otherwise gone unnoticed. Ever wonder which is the fastest way through a certain corner, test it and find out for sure. Set virtual beacons so you don't have to rent transponders from the track (most clubs don't even have them available for hpdes). Includes gps receiver, manual, license. Requires WinMo phone or pda with bluetooth. $200 or best offers.
Free bump. MaxQ Data is a GREAT system. works for more than just autocross. Tracks laptimes on a road course, shows your line in detail, speeds and such. it's best with multiple drivers, and being all battery powered, you can hop it so easy to a bunch of cars. you can even use it at a drag strip, calculates quarter mile times, and i believe can even calculate how quickly you shift.
Looks neat. Also, looks like you (or whomever) was having some problems with a certain corner, hehe. *bump*