AMG engines have always been among the greatest in business. Not just in terms of performance, but also the sound they make, and the quality. Unlike most high-performance engines that are quite fragile, these weapons-grade units last forever. Part of the reason AMG engines are so good is because they spend countless hours on the test bench. Here we have a video of the new AMG engine of them all, the 5.5 liter biturbo V8 attached to the testing machine.

It looks, and sounds, like a living thing!