Alfa Romeo 4C (2015) is 164 mm (6.46 inch) wider and 977 kg (2,154 lbs) lighter than Mazda BT-50 (2020).
Mazda BT-50 (2020) is 1377 mm (54.21 inch) longer, 637 mm (25.08 inch) higher and has 1047 liters (36.97 ft3) bigger cargo space than Alfa Romeo 4C (2015).