BMW 8 Series (G14) (2019) is 28 mm (1.10 inch) longer than Cadillac XT5 (2021).
Cadillac XT5 (2021) is 1 mm (0.04 inch) wider, 341 mm (13.43 inch) higher, 147 kg (324 lbs) lighter and has 502 liters (17.73 ft3) bigger cargo space than BMW 8 Series (G14) (2019).