BMW 8 Series (G14) (2019) is 55 mm (2.17 inch) longer and 20 mm (0.79 inch) wider than Cadillac CTS (2019).
Cadillac CTS (2019) is 114 mm (4.49 inch) higher, 212 kg (467 lbs) lighter and has 97 liters (3.43 ft3) bigger cargo space than BMW 8 Series (G14) (2019).