McLaren 600LT (2019) is 1087 kg (2,396 lbs) lighter than Mercedes GLS-Class (2021).
Mercedes GLS-Class (2021) is 730 mm (28.74 inch) longer, 26 mm (1.02 inch) wider, 627 mm (24.69 inch) higher and has 205 liters (7.24 ft3) bigger cargo space than McLaren 600LT (2019).