BMW 1 Series (2015) is 500 kg (1,102 lbs) lighter than Mercedes GLK-Class (2018).
Mercedes GLK-Class (2018) is 207 mm (8.15 inch) longer, 75 mm (2.95 inch) wider, 278 mm (10.94 inch) higher and has 90 liters (3.18 ft3) bigger cargo space than BMW 1 Series (2015).