BMW 1 Series (2015) is 62 mm (2.44 inch) wider and 715 kg (1,576 lbs) lighter than Mazda BT-50 (2017).
Mazda BT-50 (2017) is 1036 mm (40.79 inch) longer, 400 mm (15.75 inch) higher and has 797 liters (28.15 ft3) bigger cargo space than BMW 1 Series (2015).