I will be there Saturday, also Friday cruise from NPD in Ocala. If you have not viewed the NPD collection, it is a must see. They had a GNX that was never dealer prepped a few years back. Hope it's still there 
https://www.npdlink.com/store/images/GM-ShowFlyer2015.pdf

https://www.npdlink.com/store/images/GM-ShowFlyer2015.pdf