Lamborghini Murcielago (2020) is 202 mm (7.95 inch) longer and 245 mm (9.65 inch) wider than Porsche Cayman (2017).
Porsche Cayman (2017) is 158 mm (6.22 inch) higher, 341 kg (752 lbs) lighter and has 52 liters (1.84 ft3) bigger cargo space than Lamborghini Murcielago (2020).