BMW 5 Series Gran Turismo (2015) is 628 mm (24.72 inch) longer, 100 mm (3.94 inch) wider, 266 mm (10.47 inch) higher and has 338 liters (11.94 ft3) bigger cargo space than Porsche Cayman (2019).
Porsche Cayman (2019) is 725 kg (1,598 lbs) lighter than BMW 5 Series Gran Turismo (2015).
