BMW 3 Series (2014) is 134 kg (295 lbs) lighter than BMW 5 Series Gran Turismo (2018).
BMW 5 Series Gran Turismo (2018) is 319 mm (12.56 inch) longer, 57 mm (2.24 inch) wider, 39 mm (1.54 inch) higher and has 50 liters (1.77 ft3) bigger cargo space than BMW 3 Series (2014).