Ford Mustang (2017) is 633 kg (1,396 lbs) lighter than Mercedes GLS-Class (2020).
Mercedes GLS-Class (2020) is 551 mm (21.69 inch) longer, 40 mm (1.57 inch) wider, 429 mm (16.89 inch) higher and has 31 liters (1.09 ft3) bigger cargo space than Ford Mustang (2017).