BMW 1 Series (2015) is 355 kg (783 lbs) lighter than BMW 3 Series Gran Turismo (2019).
BMW 3 Series Gran Turismo (2019) is 495 mm (19.49 inch) longer, 63 mm (2.48 inch) wider, 87 mm (3.43 inch) higher and has 160 liters (5.65 ft3) bigger cargo space than BMW 1 Series (2015).