Top Gear's Chris Harris is mightily impressed by the Merc-AMG GTR

United Kingdom - Top Gear's Chris Harris is the resident performance car tester for the BBC's motoring show. 

Fortunately for fans of the show, Harris also has segments on Top Gear's Youtube channel and recently drove the new Porsche 911 GT3 RS, BMW M4 GTS and the Hulk-looking Mercedes-AMG GTR. 

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Harris had quite a bit to say about the Merc: "This a joyous thing. This is a seriously fast car and it feels so flat. It just feels super composed and kinda (sic) butchers the road into submission."

Could the new Mercedes AMG GT R and BMW's M4 GTS give the Porsche a run for its money?

Watch the track test below: