I was watching tiger last night and on one of the commercials they mentioned a Buick test drive promotion. Just go to buick.com and sign up for a test drive, take it to the dealear and they'll send you $50.
The downside: you have to test drive a Buick. I had a friend who did something like this once for a box of free golf balls...they called him, emailed him and bugged him for weeks about buying a car he didn't want in the first place. And don't think you can get out of there without giving them contact information. Test drive at your own risk!
