Audi RS 5 (2018) is 400 kg (882 lbs) lighter than Mercedes M-Class (2015).
Mercedes M-Class (2015) is 164 mm (6.46 inch) longer, 72 mm (2.83 inch) wider, 419 mm (16.50 inch) higher and has 344 liters (12.15 ft3) bigger cargo space than Audi RS 5 (2018).