I've been curious of that myself, actually. When wifey is ready for a new car, my plan has been to throw a turbo on her Cobalt, strip it, cage it, and rally it. We're not at that point yet, so I haven't looked into it, but I've noted a distinct lack of any mention of it by anyone in this area. Every other place I've lived it was brought up fairly often, especially upstate NY. So I'd like to know why as well.