Took it for a quick drive. Drives so smooth, I just wish the one I drove was a manual but the auto has paddle buttons on the steering wheel to give a little more fun. Acceleration is smooth also and dangerous since you can pick up speeds and not realize how fast your going, thinking you going the speed limit but look down and seeing much higher on the speedo is a little to easy to do. The one I drove is a show car from the auto show and had some squeaking in the suspension which could be from anything. I was told when this goes back to GM it will be crushed.
Something to do with it was meant as a demo only and can only be insured by the dealership, but who knows.