Cadillac has unveiled the 2027 Celestiq Night Test. Cadillac began Celestiq deliveries last summer, and the ultra-luxury sedan has been slowly trickling into the hands of wealthy buyers. One of the latest to be hand-built in Michigan is this moody 2027 model known as the Night Test. Putting the electric powertrain aside, the Celestiq sports a 55-inch pillar-to-pillar display, an 11-inch Front Command Center, and an 8-inch Rear Command Center. Customers will also find two 12.6-inch rear passenger displays as well as the Super Cruise semi-autonomous driving system.