BMW 7 Series (2019) 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 (2018).
Porsche Cayman (2018) is 570 kg (1,257 lbs) lighter than BMW 7 Series (2019).
