Manhart is back at it again, turning yet another BMW into a gaudy track monster, with the treatment transforming a new M4 CSL into the MH4 GTR II. The First MH4 GTR turned the F82 M4 DTM Championship Edition into a 700 hp beast and the new one wants to continue the trend of making the rare even rarer.

Manhart has gotten its tuning hands all over some great German vehicles recently, like turning the BMW M5 CS into a 777 hp supercar killer and cramming close to 1000 hp into the Porsche 911 GT2 RS. With this new GTR, it's planning on continuing the trend by bumping up the power on CSL from 543 hp and 497 lb-ft of torque to a whopping 702 hp and 650 lb-ft of torque.

The process starts with the company plugging in its in-house MHtronik auxiliary control unit to the three-liter, twin-turbo S58 inline-six to dizzying heights. Along with this, the company adds a Manhart stainless steel exhaust system with four 110mm tailpipes that can be either carbon-coated or ceramic-coated and Manhart downpipes, either including 300-cell GESI catalytic convertors or sans them. The brakes can be upgraded individually by request, but it seems the company doesn't offer anything specific with this package.

The car also benefits from many exterior visual changes as well. First, it is lowered on a custom Manhart suspension which includes adjustable Manhart coil springs by H&R. The body features an 18-piece carbon fiber body kit that includes a hood with GTR intakes, a spoiler, side aero flicks, two-piece side louvers, diffuser, a three-piece rear spoiler and much more.

All of this is covered in a stealthy Matte Black shade with orange-red accents across the body. This matches the massive Forged+ 1 Yido Performance forged alloy wheels that wear Matte black paint with a single orange-red double-spoke accent on each wheel. It seems that the color is customizable to whatever the owner's preference is, so if you're not a fan of black and red you don't have to worry.

On the inside, the car sees fewer changes. They consist of Schroth four-point harnesses connected to a new Clubsport roll bar and Manhart floor mats. Luckily, the M4 CSL is going to be a fantastic place to spend some time so we don't really see a need to change much more. As almost a cherry on top, the company is also throwing in a carbon fiber racing helmet, because safety is key.

The company didn't mention how much this little upgrade will cost, but it probably won't be much for someone who can afford the $140,000 M4 CSL.

Now if you, unfortunately, missed out on the chance to get your hands on one of the 1,000 CSLs - or you'd rather not butcher an ultra-limited model like the CSL to build the Manhart monster you see here - then we have good news for you. Manhart is also willing to take your boring old M4 Competition and turn it into an MH4 GTR II, seemingly with the same upgrades to looks and power. This seems like a better investment than messing with the very-rare CSL, but hey, at least you will have company.