How would you like GPS to be integrated? From what I gather it would be useless as the GPS is not locked all the time, and if you drive with the PC off you would not be able to log any data. I know for a fact that I will make short trips to the shops and stuff like that without having the PC turn on.

If I'm missing something here, please do tell!

Also, how would you calculate MPG? You know how much fuel you put in, and how far you have travelled since last refuel, but you dont know how much fuel was used since last refuel...or am I missing something here too? Maybe its all these late nights I seem to be having lately!