Brilliant. Similar to another comment when I first got my Prius I played with along with the metrics and still do occasionally. But, I felt like I unlocked all the rewards.

Separate player tags would be awesome and could be accomplished with fobs or sign-ins. Or perhaps you just register your high scores?

For more in-depth configuration you could include wifi access and a browser portal to set up drivers or post to your facebook wall. OK, ok it could go downhill quickly. :)

Imagine getting into your car and having it decked out as a fully operational 80's arcade console. Wood paneling, quarter slots and a big red 'Start' button.