BMW 3 Series Gran Turismo (2014) is 69 mm (2.72 inch) longer, 14 mm (0.55 inch) wider, 86 mm (3.39 inch) higher and has 217 liters (7.66 ft3) bigger cargo space than Cadillac CT4 (2020).
Cadillac CT4 (2020) is 165 kg (364 lbs) lighter than BMW 3 Series Gran Turismo (2014).