BMW 8 Series (G14) (2018) is 199 mm (7.83 inch) wider and 172 kg (379 lbs) lighter than Mazda BT-50 (2015).
Mazda BT-50 (2015) is 522 mm (20.55 inch) longer, 482 mm (18.98 inch) higher and has 807 liters (28.50 ft3) bigger cargo space than BMW 8 Series (G14) (2018).