In a time when most of its rivals are downsizing their engines and adopting forced induction or hybrid technology to boost output, we’re glad to see that AMG is sticking with the tried and true formula of a naturally aspirated V-8 engine for its latest generation 2012 Mercedes-Benz SLK55 AMG.

With a peak output of 415 horsepower and 398 pound-feet of torque, the new V-8, codenamed M152, ensures that the 2012 SLK55 AMG is the most powerful SLK of all time.

However, it’s also quite frugal thanks to cylinder deactivation technology, direct injection, and an engine stop-start system.

It sees the SLK55 AMG accelerate from 0-60 mph in 4.5 seconds, easily hit an electronically limited top speed of 155 mph and return a claimed gas mileage of 28 mpg for the European combined cycle (EPA rated are yet to be announced).

We’ve already gone into great detail describing the new engine’s specs, but here’s an official video from AMG outlining some of the highlights.

After the video, click here for full details on the 2012 Mercedes-Benz SLK55 AMG, and then click here for our own review of the slightly tamer SLK350.