Mercedes-Benz’s slogan is “The best or nothing.” Nowhere is that more apparent than in the automaker’s AMG line. What started in the 1960s as a project to develop racing engines has grown into a collection of cars available to everyday consumers (inasmuch as you can call someone with buckets of cash to spend on a car “everyday”).

But the racing spirit is still very much a part of every car that carries the AMG medallion. It’s no accident that the AMG line was well represented in our list of the 10 coolest Mercedes of all time. And the soon-to-be-released AMG GT, with its 456-horsepower biturbo engine, is further proof.

Cool Hunting had a chance to visit the factory in Germany where the AMG engines are put together. Let’s just say it was nothing like the assembly line that Eminem worked at in 8 Mile. AMG has around 140 mechanics who work on the V8 and V12 engines. Each of those mechanics works on the engine from soup to nuts as part of AMG’s “one man, one engine” philosophy. When the mechanic completes his engine, he even signs it as a symbol of his responsibility.

Watch the video and see if you can resist the urge to go out and buy an AMG right now:

Justin Tejada is a writer and editor based in New York City. Follow him on Twitter at @just_tejada