BMW 8 Series (G14) (2020) is 49 mm (1.93 inch) wider than Cadillac XTS (2017).
Cadillac XTS (2017) is 297 mm (11.69 inch) longer, 162 mm (6.38 inch) higher, 116 kg (256 lbs) lighter and has 160 liters (5.65 ft3) bigger cargo space than BMW 8 Series (G14) (2020).