BMW 6 Series Gran Turismo (2020) is 124 mm (4.88 inch) longer, 68 mm (2.68 inch) wider, 86 mm (3.39 inch) higher and has 162 liters (5.72 ft3) bigger cargo space than Cadillac CTS (2014).
Cadillac CTS (2014) is 84 kg (185 lbs) lighter than BMW 6 Series Gran Turismo (2020).