McLaren Senna (2018) is 76 mm (2.99 inch) wider and 401 kg (884 lbs) lighter than Mercedes CLS-Class (2014).
Mercedes CLS-Class (2014) is 196 mm (7.72 inch) longer, 222 mm (8.74 inch) higher and has 520 liters (18.36 ft3) bigger cargo space than McLaren Senna (2018).