W205 C63 S (2016-NOW)

4.0-litre V8, twin-turbo, 375kW/700Nm, 1725kg Smaller engine, turbos for the first time, but insane amounts of power, 0-100km/h falling to a claimed 3.9sec (in perfect conditions) and supercar pace on a twisty road. Bit heavy, but huge amounts of wheelspinning fun. You can still buy one, too!