BMW 8 Series (G16) (2020) is 80 mm (3.15 inch) wider than Cadillac XTS (2015).
Cadillac XTS (2015) is 50 mm (1.97 inch) longer, 94 mm (3.70 inch) higher, 92 kg (203 lbs) lighter and has 69 liters (2.44 ft3) bigger cargo space than BMW 8 Series (G16) (2020).