BMW 7 Series (2020) is 742 mm (29.21 inch) longer, 102 mm (4.02 inch) wider, 174 mm (6.85 inch) higher and has 353 liters (12.47 ft3) bigger cargo space than Porsche Cayman (2019).
Porsche Cayman (2019) is 610 kg (1,345 lbs) lighter than BMW 7 Series (2020).
