McLaren GT (2020) is 577 mm (22.72 inch) longer, 307 mm (12.09 inch) wider and has 70 liters (2.47 ft3) bigger cargo space than MINI Cooper Countryman (2015).
MINI Cooper Countryman (2015) is 348 mm (13.70 inch) higher and 231 kg (509 lbs) lighter than McLaren GT (2020).