Audi TT RS (2014) is 625 kg (1,378 lbs) lighter than Mercedes GLC-Class (2016).
Mercedes GLC-Class (2016) is 457 mm (17.99 inch) longer, 48 mm (1.89 inch) wider, 304 mm (11.97 inch) higher and has 70 liters (2.47 ft3) bigger cargo space than Audi TT RS (2014).