BMW 5 Series (2014) is 338 mm (13.31 inch) longer, 104 mm (4.09 inch) wider, 115 mm (4.53 inch) higher and has 20 liters (0.71 ft3) bigger cargo space than Mazda 3 (Sedan) (2017).
Mazda 3 (Sedan) (2017) is 407 kg (897 lbs) lighter than BMW 5 Series (2014).