Well, I took a look at and drove this M Coupe today.
These cars are definitely smaller than they look in pictures, similar to the S30 actually. I fit, but not much room for a helmet, save popping the sunroof. Overall, it's really just a smaller, lighter, quicker M3. It's sort of reminiscent of the E30 M3, except with more power (and weight). It has a ton of torque (compared to what I'm used to) and a nice kick at higher rpm.
What I didn't like about this particular one is that upon inspection I found that it was hit in the front (new hood, left fender, bumper, headlights) and the front bumper did not align correctly. There were some slightly bent parts up front and some foreign-looking metal piping in front of the radiator. Shock mounts definitely need replacing and likely bushings, among other parts. There was no service history, and the guy was convinced that unmaintained E36 cooling systems are nothing to worry about. The salesman didn't seem like he really wanted to sell the car, even though it's been on the lot for 6 months or so. Apparently, he knows what these go for and everything else there is to know about cars...
I'm casually on the lookout for a nice Z06 in the area, other M Coupes and the S2000 is still in very strong consideration. We'll see how much pain Christmas will bring to my wallet!