The ever-confusing BMW M lineup no longer includes an M3 CS in the United States, but the short-lived M3 CS last sold here received an outrageous 543 horsepower from its turbochar

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.

The M3 CS Touring is expected to follow the same formula as the M3 CS sedan that was sold in 2024, which means extra power and less weight.

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.