BMW 8 Series (G14) (2018) is 43 mm (1.69 inch) longer and 81 mm (3.19 inch) wider than Subaru Outback (2014).
Subaru Outback (2014) is 284 mm (11.18 inch) higher, 319 kg (703 lbs) lighter and has 570 liters (20.13 ft3) bigger cargo space than BMW 8 Series (G14) (2018).