get an eco modding window sticker. see link:
http://ecomodder.com/forum/showthrea...ock-11551.html
You can buy your scangauge
http://ecomodder.com/forum/showthrea...tly-11396.html
here and the sticker.
The sticker looks professional and give the kids a site to go to.....then they can follow your car!!!!