BMW 1 Series (2015) is 535 kg (1,179 lbs) lighter than BMW 5 Series Gran Turismo (2017).
BMW 5 Series Gran Turismo (2017) is 675 mm (26.57 inch) longer, 136 mm (5.35 inch) wider, 138 mm (5.43 inch) higher and has 140 liters (4.94 ft3) bigger cargo space than BMW 1 Series (2015).