BMW 8 Series (G15) (2018) is 503 mm (19.80 inch) longer, 212 mm (8.35 inch) wider and has 80 liters (2.83 ft3) bigger cargo space than Subaru Impreza GJ (2015).
Subaru Impreza GJ (2015) is 64 mm (2.52 inch) higher and 704 kg (1,552 lbs) lighter than BMW 8 Series (G15) (2018).