Mercedes has yet to reveal the new AMG C63, but we all know its crossover equivalent can't be far behind. After all, the standard GLC has been revealed and we've seen our fair share of images of the AMG version that will go up against the BMW X3 M. In an attempt to unofficially preview the GLC 63, our good pals at Kolesa have digitally peeled off the camouflage from a prototype that was recently spied undergoing testing.
