BMW 3 Series Gran Turismo (2014) is 395 kg (871 lbs) lighter and has 20 liters (0.71 ft3) bigger cargo space than BMW 5 Series Gran Turismo (2015).
BMW 5 Series Gran Turismo (2015) is 182 mm (7.17 inch) longer, 72 mm (2.83 inch) wider and 51 mm (2.01 inch) higher than BMW 3 Series Gran Turismo (2014).