Porsche Cayman (2015) is 383 mm (15.08 inch) longer and 106 mm (4.17 inch) wider than Toyota Prius C (2016).
Toyota Prius C (2016) is 152 mm (5.98 inch) higher, 271 kg (597 lbs) lighter and has 98 liters (3.46 ft3) bigger cargo space than Porsche Cayman (2015).
