BMW 8 Series (G15) (2019) is 25 mm (0.98 inch) wider and 87 kg (192 lbs) lighter than Subaru Tribeca (2018).
Subaru Tribeca (2018) is 21 mm (0.83 inch) longer, 379 mm (14.92 inch) higher and has 644 liters (22.74 ft3) bigger cargo space than BMW 8 Series (G15) (2019).