Here's my GasSavers.org sticker! I didn't want to put it down low at the bottom since the rear spoiler would block the view. I had somebody short-beep me in a truck as they went by. A possible GasSaver wanna-be?
I did a few EOC where traffic permitted on my last leg of a 16-mile round trip today and SG reported 45 MPG! Cool! I usually get low to mid 30's around town.
I've made it my mission to get no less than 40 MPG on my 70-mile freeway commute to and from work. Got 46 MPG once by getting lucky to have a 62-65 MPH semi to draft behind at a safe 4-second following distance for 30 miles. I like to be able to see the truck's mirror. They appreciate it too. They don't mind so much if they can see you. I'm going for 50 MPG!