Here is a good review on YouTube discussing the CT4 performance vs the other versions. If you start around the 6 minute mark he discusses how the CT4 measures up.
I was able to find a white Cross Turismo in New York without a premium. I am in Southern California where it is virtually impossible to find one without at least a $10K premium. Loading on the truck today and I should have it in about a week. Can't wait!
This issue I have with this system is the amount of time it takes to park. Most of the time you have people waiting for you to park and they get annoyed waiting for you to get through the complete process. Also I was always nervous the system would glitch and you would hit a nearby car.