BMW 1 Series (2014) is 388 mm (15.28 inch) longer, 66 mm (2.60 inch) wider and has 60 liters (2.12 ft3) bigger cargo space than Volkswagen Polo (2017).
Volkswagen Polo (2017) is 42 mm (1.65 inch) higher and 360 kg (794 lbs) lighter than BMW 1 Series (2014).