BMW 5 Series Gran Turismo (2016) is 161 mm (6.34 inch) longer, 220 mm (8.66 inch) higher, 8 kg (18 lbs) lighter and has 150 liters (5.30 ft3) bigger cargo space than BMW 8 Series (G14) (2019).
BMW 8 Series (G14) (2019) is 1 mm (0.04 inch) wider than BMW 5 Series Gran Turismo (2016).