Chevrolet Volt (2014) is 38 mm (1.50 inch) longer than Mazda 3 (Hatchback) (2017).
Mazda 3 (Hatchback) (2017) is 8 mm (0.31 inch) wider, 2 mm (0.08 inch) higher, 461 kg (1,016 lbs) lighter and has 64 liters (2.26 ft3) bigger cargo space than Chevrolet Volt (2014).