During our summer holiday last year in Monaco we saw a couple of Mercedes AMG GT Black Series driving around. It's equipped with the well-known 4.0-liter twin-turbo V8, but AMG made a few changes including the way the engine fires by equipping a flat-plane crankshaft. The result of these changes is 720HP and 800Nm of torque, a 3.1-second 0-60 mph, and a Nurburgring lap time of 6:48.047. Here you can see 5 of them driving around on the streets of Monaco.