Check out this website - http://www.carshui.com

The kit they sell seems really intelligent to me since they explain why they chose each symbol and its location and it only involves small stickers for your windows, so you don't have anything dangerous in your car in case you have an accident.

Their logic is that since a car always moves forward and because you're surrounded by windows, you easily know the direction of the chi flow and can therefore figure out each bagua region's location and feng shui the car.

I bought the kit - figured I couldn't go very wrong for $10 since I spend so much time in my car. I put it up on Friday and I really like it - if anything changes I'll let you know...

Any thoughts about the concept itself, anyone?

Ori