Honda Accord (2014) is 484 mm (19.06 inch) longer, 49 mm (1.93 inch) wider, 171 mm (6.73 inch) higher and has 285 liters (10.06 ft3) bigger cargo space than Porsche Cayman (2017).
Porsche Cayman (2017) is 43 kg (95 lbs) lighter than Honda Accord (2014).
