McLaren GT (2020) is 213 mm (8.39 inch) wider and 204 kg (450 lbs) lighter than Mercedes CLS-Class (2019).
Mercedes CLS-Class (2019) is 256 mm (10.08 inch) longer, 203 mm (7.99 inch) higher and has 100 liters (3.53 ft3) bigger cargo space than McLaren GT (2020).