That's usually for show only cars. It takes so much integrity away from the unibody, that the car would flex and creak really bad. Even with it supported it wouldn't be a good daily driver. I was thinking about it a whil ago, and the only way to make it work as a good daily driver would be pretty expensive. You would have to take a spyder, because of the full frame, and have the top of a coupe with the targa or t tops cut in welded and molded into the spyder.