My car isn't an SC (so I wont do the poll), but I have a sunroof and an opinion on them. My 91 XR7 has the sunroof and I almost never use it. I don't like the hot sun on me, so don't want it open on a sunny day. Don't want it open on a cold day. The ONLY time I like it open is on a hot night. It's pretty nice then, but I think the inside of a car stays cleaner (from dust) if you keep all the windows closed, so even on hot nights, I prefer A/C over an open moonroof. I guess in my case, "moonroof" is a better name since I only like it at night. I've had the car since 1993 and have used the roof maybe 5 times.
Kids love the roof! I'm single and had a divorced lady (that I liked) and her kid and niece in the car. They wanted it open. So in that case, the roof was cool to have.
I've had wind noise in the car for a long time now from the bad weatherstrip. I replaced it but it still makes noise. I have to adjust it, AGAIN. I think sunroofs are sort of cool. but at the same time, a very overrated option. The people with the 68-70 Cougars that have them really like em, especially the G cars. I guess because they are relatively very rare compared to our cars.
I'm a little surprised that they make the car less stable for racing. How fast are you making those turns?? But if it adds weight, that's bad. Like someone at mercurycougar dot net said "if it doesn't make it go faster, it makes it go slower". I guess a hole in the roof could be less safe in a bad accident.