Buick Regal (2017) is 1291 mm (50.83 inch) longer, 216 mm (8.50 inch) wider and has 151 liters (5.33 ft3) bigger cargo space than Volkswagen Up (2020).
Volkswagen Up (2020) is 3 mm (0.12 inch) higher and 795 kg (1,753 lbs) lighter than Buick Regal (2017).