Carlsson doesn't waste time messing around. Ever since its founding, the German tuning firm has focused its effort on the art of tuning the hell out of countless Mercedes-Benz vehicles. And it hasn't given any indication that it'll be stopping this tuning madness anytime soon, if ever. So we've selected just a few of some of its more recent offerings to focus on today. For any Mercedes owner looking to make their car even more powerful, Carlsson is without a doubt one of the premier specialists to do just that.

Just revealed earlier this month at Geneva, the CK63 RSR is based off the already fantastic CLS63 AMG but Carlsson managed to make it even better. Output was increased to 700 horsepower and 737 lb-ft of torque. Performance, as expected, also went up: it can go from 0-62 mph in 3.9 seconds and has a top speed of 212 mph. The four-door coupe has also received a carbon-fiber front lip spoiler, black stainless-steel mesh inserts in the grille intakes as well as an electronically-retractable spoiler. The interior is decked out in Mocha Brown leather and brown Alcantara along with plenty of carbon-fiber, wood and aluminum trim.

Based on the SL65 AMG, the Carlsson C25 Limited Edition was a Chinese market only creation that's especially unique. Thanks to an abundance of carbon-fiber body panels and a more aggressive front fascia with larger intakes, grille, side gills, the C25 LE sheds roughly 400 lbs. from the stock version. The head and taillights were also redesigned while power comes from a 418 horsepower V8.

The Mercedes SLK has definitely come a long way since the bland first-gen model was launched in 1996. And now Carlsson has just released a tuned version of the current generation at this year's Geneva show. The tuner added a new aerodynamics package consisting of a carbon-fiber front spoiler and RS front spoiler lip along with a Carlsson grille with inserts made from electro-polished stainless-steel. The rear-end features skirt inserts, diffuser and a spoiler. Output has been enhanced to 239 horsepower thanks to a new performance kit.

Moving away from its typical tuning jobs, Carlsson developed from scratch on a body shell this one-off racecar based on the current generation SLK-Class. Having just had its debut at Geneva, the car's weight has been kept in check, coming in at just 780 kg. Power comes from a 3.4-liter V8 that produces 610 horsepower and 317 lb-ft of torque. The exterior is composed of a carbon-fiber body kit with that huge rear wing, 18-inch racing wheels, a three-way adjustable suspension and a high-performance brake system.

A tuned diesel SUV? Sure, why not. Carlsson added its talents to the ML350 Bluetec a couple years back and it managed to modify the SUV's performance to a total of 258 horsepower and 457 lb-ft of torque. Exterior upgrades included a new set of 22-inch rims, chrome bumpers and a stainless-steel exhaust system. Inside, passengers are treated to leather upholstery with Alcantara trim, aluminum pedals and Carlsson-labeled sills.