Mercedes-AMG GT 63 4-door hits the Nurburgring - video

The Mercedes-AMG GT 63 S 4-door (breathes deeply) is the second standalone model to be launched under Benz's performance arm, and now we have vision of some early examples roaring around the Nurburgring circuit in Germany. Powered by a 4.0-litre bi-turbo V8 making a stonking 470kW of power and 900Nm of torque, put to a rear-biased 4Matic+ all-wheel drive system via a nine-speed automatic transmission, the GT 4-door is a seriously powerful beast.