Commuter Lane Tinting

I've suggested designs on tinting to a cars windows.  This is taking the same idea, using two different tint colors and applying it on the back window of the car.  The idea is the have a tint cut twice or three times darker than the rest of the car in the form of three shoulders and heads in the back seat.  That way when you look at the car from the back you would see the shadow of three people (thus allowing you to drive dishonestly in the commuter lane).  The same idea could be used for a cool marketing idea on city buses.