BMW 4 Series (2020) is 1228 mm (48.35 inch) longer, 211 mm (8.31 inch) wider and has 189 liters (6.67 ft3) bigger cargo space than Volkswagen Up (2017).
Volkswagen Up (2017) is 93 mm (3.66 inch) higher and 720 kg (1,587 lbs) lighter than BMW 4 Series (2020).