Lighter carbon-fiber parts, added muscle everywhere, and a top speed that trips a limiter at 186mph are the highlights of BMW’s upcoming M3 CS Touring xDrive. And it’s something BMW has never done before. Sure, the Bavarian automaker has made a few M3 wagons in its time, but it’s never made a CS range-topping version before.

The CS treatment for the M3 Touring brings the same 543-hp rating as the hardcore M4 CSL coupe, generated by a tuned version of the twin-turbocharged 3.0-liter inline-6 found in all M3 and M4 models. The performance increase over the 523-hp M3 Competition comes from extra boost pressure and tweaks to the engine’s electronic management.

Series, nor the mighty M3 version—and certainly not the ultimate CS speedwagon that’s just been offered to the rest of the world. Lighter, stiffer, faster and even more agile, that’s the promise of the M3 CS Touring—a promise that will sadly remained unfulfilled in the U.