BMW 8 Series (G16) (2019) is 704 mm (27.72 inch) longer, 132 mm (5.20 inch) wider, 114 mm (4.49 inch) higher and has 278 liters (9.82 ft3) bigger cargo space than Porsche Cayman (2016).
Porsche Cayman (2016) is 489 kg (1,078 lbs) lighter than BMW 8 Series (G16) (2019).
