BMW 5 Series Gran Turismo (2017) is 6 mm (0.24 inch) wider, 167 mm (6.57 inch) higher, 65 kg (143 lbs) lighter and has 41 liters (1.45 ft3) bigger cargo space than BMW 6 Series Gran Coupe (2016).
BMW 6 Series Gran Coupe (2016) is 5 mm (0.20 inch) longer than BMW 5 Series Gran Turismo (2017).