The CS, widely regarded as the unofficial manual CSL, has gained significant popularity as a sought-after classic. Beyond being a special edition model, the CS features crucial modifications that elevate the already remarkable E46 M3 into a true masterpiece.
Key enhancements include reduced unsprung weight, a shortened rack, upgraded brakes, and a track-style alcantara steering wheel, collectively known as the competition pack outside the UK. The limited production run of only 275 units, with approximately half featuring manual transmission, makes the CS one of the most challenging M3 variants to find in optimal condition.
The S54 3.2 straight-six engine, initially recognized as an engineering marvel, has proven to be relatively reliable despite some negative forum discussions. With the advantage of hindsight, even standard M3s, particularly those with manual transmission, are highly sought after as quintessential BMW M models of that era. However, for many enthusiasts, the CS stands as the ultimate choice.