Kia Optima Sportswagon (2018) is 157 mm (6.18 inch) wider and 269 kg (593 lbs) lighter than Mazda BT-50 (2017).
Mazda BT-50 (2017) is 510 mm (20.08 inch) longer, 351 mm (13.82 inch) higher and has 717 liters (25.32 ft3) bigger cargo space than Kia Optima Sportswagon (2018).