McLaren GT (2020) is 24 mm (0.94 inch) wider and 252 kg (556 lbs) lighter than Mercedes E-Class (2016).
Mercedes E-Class (2016) is 195 mm (7.68 inch) longer, 184 mm (7.24 inch) higher and has 120 liters (4.24 ft3) bigger cargo space than McLaren GT (2020).