Audi R8 (2018) is 53 mm (2.09 inch) wider and 445 kg (981 lbs) lighter than Mercedes GLC-Class (2015).
Mercedes GLC-Class (2015) is 230 mm (9.06 inch) longer, 419 mm (16.50 inch) higher and has 124 liters (4.38 ft3) bigger cargo space than Audi R8 (2018).