Well, if I could buy one I would. I have always wanted to do 200+ mph on a high banked oval. Yeah, I know I would have to build the 426 Hemi to get that speed, but that's ok. It would take up most of my garage just like my C-body does. Doesn't matter.
I have been in and have driven the B-bodies to well over 140+ mph in a straight line. Those boats just can't get around a curve or corner without some amount of excessive body lean. You also can feel the nose come up as air gets trapped under the car and the steering gets loose. Then you can feel the rear wanting to fish tail as you start to head into a curve at speed on the freeway.
I did the You-drive-a-real-NASCAR-car at Fontana Speedway. Turning left at 150 mph is a real thrill at first. After 10 laps you get to feeling safe and wanting to remove the limiter for more speed.
Gimme a Hemi Wing Car anytime.