[jb92563]

I have been thinking of doing a touchscreen as well, but it needs to do everything, music, gps navigation, interface with blue tooth OBDII for aux guages and track use, accelerometer for measuring g's, and wifi, plus removable so I can take it with me.

That being the case an ipad is not up to the task, so perhaps a windows os tablet or android with those features and peripheral ports is what im thinking.

Form factor will be important, and for either project we need to find someone with a plastic printer (reprap) to print a bezel for the space around the unit.