O.K. I've had the Autosocks for a couple of weeks, but only took the opportunity to use them this morning; not on my smartie, but on my Aveo. Had to take the wife to work, and it was snowing like crazy. The roads hadn't been cleared yet, and the Autosocks were absolutely AMAZING! I never once lost traction......never slipped....never slid!! :>) Last evening, my wife couldn't even get up the driveway, and had to be pushed in. With the Autosocks on this morning, I didn't even have to get my momentum up......I just slowly pulled up the driveway, and it was like it was bare & wet!! :>) Best $100 I ever spent! I am NOT associated or affiliated with Autosocks in any way! I just wanted to let everyone know that they are totally amazing and work exactly as advertised!! :>)