Seriously, I'm going to bite the bullet and only place one of the stickers on the back of the vehicle, I for one do not want to ruin the paint job of my 2004 black prius....Even after you have to place 4 stickers on the vehicle you have a certificate to show a peace officer viable proof..What the heck, after you ruin the paint job of your car it's not enough? Only one sticker for me....