2015 Mercedes-AMG GT S road test review | Halo runs rings Motoring Grant Edwards takes the Mercedes-AMG GT S for a spin around Norwell Park Raceway.
VIDEO: Testing the raunchy new $300k Mercedes-AMG GT S Motoring MEET the new star atop the Mercedes tree: the Mercedes-AMG GT S. Take a lap of Norwell Park Raceway with APN ARM motoring editor Grant Edwards.