Mercedes C-Class (2018) is 308 mm (12.13 inch) longer, 150 mm (5.91 inch) higher, 184 kg (406 lbs) lighter and has 295 liters (10.42 ft3) bigger cargo space than Toyota GR Supra (2018).
Toyota GR Supra (2018) is 50 mm (1.97 inch) wider than Mercedes C-Class (2018).