This looks like a really neat product.

http://www.davisnet.com/drive/produc....asp?pnum=8220

CarChipE/X™

CarChipE/X includes all the features of CarChip, plus four times the data storage—up to 300 hours of driving data. (The actual number of hours will vary, depending on how frequently you log data.)

As with CarChip, you'll get time and date for each trip, distance, speed, hard accelerations and decelerations, and engine diagnostic trouble codes.

With CarChipE/X, though, you'll also be able to monitor any four out of 23 user-selectable engine parameters, including:


RPM
Throttle position
Engine load
Fuel pressure
Fuel system status
Short- and long-term-fuel trim
Battery voltage
Timing advance
Coolant temperature
Air flow rate
Intake air temperature
Intake manifold pressure
Oxygen sensor voltage

Plus, if you're unfortunate enough to be involved in an accident, CarChipE/X will automatically generate an accident log showing the last critical 20 seconds of speed.

Includes data logger, sotfware on CD, download cable, and power adapter. Requires Windows 95 or above, at least 5 MB free hard disk space, and one free serial port. Add our optional USB-to-Serial Cable to connect to USB.

 

Looks pretty neat. I can just see someone looking through the wreckage of my car for the 'black box' now

 

That does look kinda neat.