BMW 5 Series (2015) is 409 mm (16.10 inch) longer, 71 mm (2.80 inch) wider, 25 mm (0.98 inch) higher and has 260 liters (9.18 ft3) bigger cargo space than Chevrolet Volt (2017).
Chevrolet Volt (2017) is 119 kg (262 lbs) lighter than BMW 5 Series (2015).