BMW 5 Series Gran Turismo (2015) is 5 mm (0.20 inch) wider, 167 mm (6.57 inch) higher and has 41 liters (1.45 ft3) bigger cargo space than BMW 6 Series Gran Coupe (2016).
BMW 6 Series Gran Coupe (2016) is 3 mm (0.12 inch) longer and 150 kg (331 lbs) lighter than BMW 5 Series Gran Turismo (2015).