This week on the "Talking Cars with Consumer Reports" we hit the track with two spectacular Mercedes-Benz AMG models; the $140,000 AMG GT and the $80,000 C63 AMG. There's no question they're wildly different in looks, price, and practicality, but they share the same heart and intention. All of this high-powered excitement has lead us to wonder about the future of BMW. Is Mercedes-Benz considered the new "Ultimate Driving Machine"?