Arduino interface for my car, Lydia

I've been asked to document the things I have been working on for my car.

I'll start with my ideas, and from there go into more detail in other posts.

The car is a 1968 VW Beetle, I rebuilt the engine, converted to a computerized ignition, and am putting an Arduino into the car to link everything together.

Some of the features I plan on adding are:
-RFID
-Push button start
-Communication with electronic ignition (Megajolt)
-LCD screen
-iPod connectivity
-GPS connectivity
-Temperatur sensors
-Light sensors
-Touch sensors