I personaly think you're best to learn the general direction/section names of the track off the track. That way when you drive it there's no need to have to think about what is coming next or rely on being told by a machine! There's plenty of video's/DVD's and track notes/guides floating about!
RS, I was in discussions for making something similar for a project with my university. I wanted to develop a Windows CE program to record your route around the track, so when the lap is done you can compare your lines along with many other laps all overlayed onto a map of the circuit. As well as recording instantaneous speeds all the way round. Possible addons could include accelerometers for measuring g-forces around the track also.
Bloody hell Phil, sounds a bit involved! Trouble with the Ring is that every lap is going to be pretty different, there's always people to pass/let past, yellow flagged area's etc etc to negotiate making it tricky to always stick to a particular line and speed.
