The current Cadillac CT6 is 5,184 mm long, 1,880 mm wide and 1,472 mm tall, on a 3,109 mm wheelbase.
Only one generation of this model is in our catalogue, so there is no size history to compare yet.
Exterior figures are manufacturer specifications for the CT6, averaged per generation across its variants and shown for the most common body style. Generations with the same size are merged. Boot capacity is the seats-up figure where the manufacturer quotes one.