2025 BMW M4 CS Review: What BMW Won't Tell You About Modern M Cars

The BMW M4 CS reveals something BMW doesn't want you to know: they've been holding back their best engineering capabilities in regular M cars to justify premium variants like this $123,500 track-focused monster. After extensive testing, I discovered that the chassis tuning, brake calibration, and suspension geometry in this CS could have been implemented in every M4 from day one – but BMW chose not to give it to you until now.

This comprehensive review explores exactly what separates the M4 CS from the Competition and whether BMW's tiered engineering strategy makes this the ultimate M4 or just an expensive way to access capabilities you should have had already. The CS makes 543 horsepower from its twin-turbo S58 engine, weighs 77 pounds less than the Competition xDrive, and delivers genuine supercar performance in a daily-drivable package.

What You'll Discover:

I break down the real-world ownership experience beyond typical press reviews, including the shocking compromises BMW made (like completely eliminating cup holders), the shared components with M3 CS and M4 CSL that most people never learn about, and why this limited-production model represents either brilliant product strategy or sophisticated customer manipulation. In this episode, you'll find detailed performance testing, interior analysis, and honest assessments of whether the $25,000 premium over M4 Competition delivers meaningful improvements or just exclusive bragging rights.

Technical Highlights:

The S58 3.0L twin-turbo inline-six produces 543 hp and 479 lb-ft, launching this 3,902-pound machine to 60 mph in 3.2 seconds. The M xDrive intelligent all-wheel drive system includes rear-wheel drive mode for maximum enjoyment, while the adaptive M suspension features CS-specific geometry that transforms handling dynamics. Carbon ceramic brakes, M Carbon bucket seats, and extensive CFRP bodywork justify the weight reduction and premium positioning.

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