BMW 3 Series Touring (2015) is 910 kg (2,006 lbs) lighter than BMW X7 (2018).
BMW X7 (2018) is 518 mm (20.39 inch) longer, 189 mm (7.44 inch) wider, 376 mm (14.80 inch) higher and has 255 liters (9.01 ft3) bigger cargo space than BMW 3 Series Touring (2015).