BMW 5 Series Gran Turismo (2015) is 614 mm (24.17 inch) longer, 99 mm (3.90 inch) wider, 264 mm (10.39 inch) higher and has 350 liters (12.36 ft3) bigger cargo space than Porsche 718 Cayman (2017).
Porsche 718 Cayman (2017) is 689 kg (1,519 lbs) lighter than BMW 5 Series Gran Turismo (2015).
