I did something fun this weekend that might interest some of you, my wife and I took our Chevy Cobalt out to an SCCA autocross event. It cost us $35 to race it six times. There was everything from go-carts to IRL cars. The Super Stock class was full of Porsche's and Vettes, and even a few exotics were out for a turn or two. The way I understand it, you can usually find a race any Sunday in your local metropolitan areas. Either with the SCCA or a more local affiliated group.
This Link is a video of my wife's final run of the day. They do this stuff rain or shine!