BMW 1 Series (2014) is 475 kg (1,047 lbs) lighter than BMW 7 Series (2019).
BMW 7 Series (2019) is 760 mm (29.92 inch) longer, 154 mm (6.06 inch) wider, 56 mm (2.20 inch) higher and has 155 liters (5.47 ft3) bigger cargo space than BMW 1 Series (2014).