Kia Optima Sportswagon (2015) is 1750 kg (3,858 lbs) lighter than Rolls-Royce Cullinan (2020).
Rolls-Royce Cullinan (2020) is 486 mm (19.13 inch) longer, 299 mm (11.77 inch) wider, 359 mm (14.13 inch) higher and has 7 liters (0.25 ft3) bigger cargo space than Kia Optima Sportswagon (2015).