As thrilling to drive as they are to look at, the Mercedes-AMG GT and higher-performing GT S have put the vaunted Porsche 911 on notice. So, how do they perform on the road and track? Join KBB’s Zach Vlasuk to find out. 

For the latest AMG GT pricing and information:
http://www.kbb.com/mercedes-benz/mercedes-amg-gt/2016/

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