Kia Optima (2018) is 740 mm (29.13 inch) longer, 74 mm (2.91 inch) wider and has 179 liters (6.32 ft3) bigger cargo space than MINI Cooper Paceman (2014).
MINI Cooper Paceman (2014) is 51 mm (2.01 inch) higher and 226 kg (498 lbs) lighter than Kia Optima (2018).