BMW 3 Series Touring (2015) is 216 mm (8.50 inch) longer, 76 mm (2.99 inch) wider and has 73 liters (2.58 ft3) bigger cargo space than Chevrolet Sonic (Sedan) (2018).
Chevrolet Sonic (Sedan) (2018) is 87 mm (3.43 inch) higher and 249 kg (549 lbs) lighter than BMW 3 Series Touring (2015).