BMW 6 Series Gran Turismo (2018) is 491 mm (19.33 inch) longer than Cadillac XT4 (2019).
Cadillac XT4 (2019) is 45 mm (1.77 inch) wider, 88 mm (3.46 inch) higher, 50 kg (110 lbs) lighter and has 28 liters (0.99 ft3) bigger cargo space than BMW 6 Series Gran Turismo (2018).