BMW 8 Series (G14) (2018) is 244 mm (9.61 inch) longer than Cadillac XT4 (2020).
Cadillac XT4 (2020) is 45 mm (1.77 inch) wider, 288 mm (11.34 inch) higher, 178 kg (392 lbs) lighter and has 287 liters (10.14 ft3) bigger cargo space than BMW 8 Series (G14) (2018).