BMW 5 Series Gran Turismo (2020) is 7 mm (0.28 inch) higher, 58 kg (128 lbs) lighter and has 66 liters (2.33 ft3) bigger cargo space than Chevrolet SS (2017).
Chevrolet SS (2017) is 23 mm (0.91 inch) longer and 30 mm (1.18 inch) wider than BMW 5 Series Gran Turismo (2020).