AMG’s 2.0 liter four-cylinder turbocharged engine powering their new flock of small cars is arguably the best of its kind in the world. It offers 360 horsepower, which is what you’d normally get from a V8, while remaining as fuel-efficient as a four-pot should be. Still, some like Posaidon think there is still room for improvement.

And they have driven their point hoe by unleashing a tuned version of the engine in this Posaidon Mercedes A45 AMG you see here. It has an output of 445 horsepower and 535 nm of torque; mind-bending numbers for a four-cylinder, especially as it is the result of some electronic wizardry.

Of course, for those who may get dizzy when faced with so much power, Posaidon offers weaker versions in form of a stage two 405 hp/490 Nm package, and a stage one 385 hp/480 Nm treatment. But if you are getting your A45 tuned, you might as well get the best option there is.

The engine treatment for Posaidon Mercedes A45 AMG can also be ordered for CLA 45 and GLA 45 models.