Wagon fans and enthusiasts rejoice! Following in the footsteps of the M2 CS pocket rocket, the hardcore M3 CS and the excellent M4 CS, BMW is adding another track-focused CS model to its portfolio.

BMW is preparing to reveal a more hardcore version of the M3 Touring wagon, which isn't sold in the U.S. The BMW M3 CS Touring will likely get the same bump to 543 horsepower as the sedan ...