BMW 7 Series (2018) is 681 mm (26.81 inch) longer, 167 mm (6.57 inch) wider and has 92 liters (3.25 ft3) bigger cargo space than Chevrolet Sonic (Sedan) (2014).
Chevrolet Sonic (Sedan) (2014) is 38 mm (1.50 inch) higher and 602 kg (1,327 lbs) lighter than BMW 7 Series (2018).