Chevrolet Spark (2016) is 256 mm (10.08 inch) higher, 376 kg (829 lbs) lighter and has 161 liters (5.69 ft3) bigger cargo space than Porsche Cayman (2016).
Porsche Cayman (2016) is 703 mm (27.68 inch) longer and 202 mm (7.95 inch) wider than Chevrolet Spark (2016).