BMW 5 Series (2015) is 868 mm (34.17 inch) longer, 124 mm (4.88 inch) wider and has 176 liters (6.22 ft3) bigger cargo space than Chevrolet Sonic (Hatchback) (2017).
Chevrolet Sonic (Hatchback) (2017) is 43 mm (1.69 inch) higher and 610 kg (1,345 lbs) lighter than BMW 5 Series (2015).