CT6 = Cadillac Touring Car model 2016. The hybrid version should be lighter than, and quicker to 60 mph than a Tesla Model 60 and WAY larger inside.
This will be the first car to receive SuperCruise. It was held up by the NHTSA because it does have autonomous functions that are not parking related.
The Hybrid's highest trim will only be Premium Luxury. I would think by the time you trim it, it will be $85k. Still unsure whether it will be offered with AWD, but it appears RWD will be the only version.
The big dawg is the 3.0 TT Platinum, which is be one of the finest large luxury sedans at any price. Expect $100k with the 5 massage functions front and rear, adj heated seats front and rear, world's best audio system put into a production car, personal entertainment systems for rear passengers, all-wheel-steering with the AWD cars, night IR vision, light weight, excellent handling with magnetic suspension, etc.