BMW 5 Series (2018) is 904 mm (35.59 inch) longer, 132 mm (5.20 inch) wider and has 185 liters (6.53 ft3) bigger cargo space than Chevrolet Sonic (Hatchback) (2016).
Chevrolet Sonic (Hatchback) (2016) is 7 mm (0.28 inch) higher and 485 kg (1,069 lbs) lighter than BMW 5 Series (2018).