While the AMG A45 S is missed out in the United States, in Europe, there are plenty of young people, women in particular, that are crazy about the hot hatchback, which is considered one of the coolest, sexiest, and most attractive ever made. And powerful, too.

This is the reason why a lot of tuning companies are on a constant hunt when it comes to customizing the model. One of them is the well-known tuning company from Florida, Renntech, which recently had the chance to grab the model and play with it. And that is thanks to a customer who recently went to Germany and bought it as a gift to his wife and then brought it to the company`s location in the US.

The exterior doesn’t show serious signs of customizations, however, it did receive new front and rear bumpers and wider alloy wheels. At the rear however, one can observe the massive double downpipes which announce an impressive engine soundtrack and increased power.

Speaking of a more impressive engine revving, the standard exhaust system has received a remote-control exhaust valve module that enables “the exhaust valve to be fully opened in all driving modes.” However, the work on the exhaust system is still in progress, as the tuner would eventually install a new one with an upgraded catalytic converter.

As shown in the pictures below, the aftermarket specialists from Renntech have tested out the new power of the Mercedes-AMG A45 S. If in stock form, the hot hatchback develops no less than 416 horsepower and 369 lb-ft of torque, squeezed from a 2.0-liter four-cylinder turbocharged M139 engine, in upgraded form, this little beast is capable of more.

As the tuner declared, at least two power stages are available for this gorgeous model; at least two, for the moment.

The first phase is all about 475 horsepower and 424 pound-feet of twist owing to an engine software upgrade. In the first quarter of the year the second phase will be presented with a figure of 550 horsepower, supplied by an adjusted turbocharger and improved exhaust system. To conclude, there might be another power level that will have around 600 horsepower, which is simply astounding for the Mercedes-AMG A45 S.

Utilizing the first power stage only, the Renntech-tuned Mercedes-AMG A45 S is reported to cover the 0-100 km/h stretch in an amazing 3.9 seconds. Now, picture it with not less than 600 horsepower under it. Of course the tuner`s stunning power program will be discussed in detail in this incredible hot hatchback.

Even if the model is only available in Europe, the closest thing to the model that the US customers can enjoy is the Mercedes-AMG CLA 45, which features the same 2.0-liter four-cylinder turbocharged M139 banger; however, it comes with less power than the A45 S on the Old Continent. Even so, both models share visual characteristics and technology on board.

Until further info emerges, enjoy the media gallery that the tuner has released with the bold project on the Mercedes-AMG A45 S! Also, don’t forget to tell us if you like the model and would want to have it in the United States!