Kia Optima Sportswagon (2020) is 927 kg (2,044 lbs) lighter than Rolls-Royce Cullinan (2019).
Rolls-Royce Cullinan (2019) is 486 mm (19.13 inch) longer, 140 mm (5.51 inch) wider, 359 mm (14.13 inch) higher and has 120 liters (4.24 ft3) bigger cargo space than Kia Optima Sportswagon (2020).