The BMW M4, a high-performance variant of the 4 Series, has captivated driving enthusiasts since its introduction in 2014. Choosing the right M4 can be daunting, given the model's evolution and various iterations. This guide aims to provide a comprehensive overview of the best and worst years of the BMW M4, helping you make an informed decision.
BMW M4: Model Years and Key Considerations
| Model Year | Strengths | Weaknesses |
|---|---|---|
| F82/F83/F84 (2014-2020) | Strong S55 engine, engaging driving dynamics, available manual transmission, relatively affordable (used market) | Potential crank hub issues (early models), somewhat artificial steering feel, some find the exhaust note lacking, interior design aging |
| G82/G83 (2021-Present) | More powerful S58 engine, improved interior quality, advanced technology, striking (though controversial) design | Divisive front grille, heavier than previous generation, some find it less engaging than the F82, no manual transmission available after 2024 |
| Competition Models (F82/G82) | Increased power, sharper handling, more aggressive styling | Firmer ride, higher price |
| CS/CSL Models (F82/G82) | Track-focused performance, lightweight construction, exclusive features | Significantly higher price, less comfortable for daily driving, limited availability |
Detailed Explanations
F82/F83/F84 (2014-2020): The Original M4
The F82 (coupe), F83 (convertible), and F84 (M4 GTS) represent the first generation of the M4. Powered by the S55 inline-six engine, these models offer a thrilling driving experience. The S55 delivers impressive power and torque, making it a potent performer on both the road and the track. A key advantage is the availability of a manual transmission, which many enthusiasts appreciate for its added engagement. The used market also offers these models at a more accessible price point. However, early models are known for potential crank hub issues, which can be costly to repair. Some drivers also find the steering feel somewhat artificial and the exhaust note less than desirable. The interior design, while functional, is starting to show its age compared to newer models.
G82/G83 (2021-Present): The Modern M4
The G82 (coupe) and G83 (convertible) mark the second generation of the M4. They feature the more powerful S58 inline-six engine, which builds upon the S55 with increased horsepower and torque. The interior quality is noticeably improved, offering a more luxurious and modern feel. Advanced technology, including updated infotainment and driver-assistance systems, enhances the overall driving experience. The G82 is also known for its controversial front grille design, which has been a subject of much debate. While more powerful, the G82 is heavier than its predecessor, which some argue detracts from its agility. Furthermore, BMW discontinued the manual transmission for the M4 after the 2024 model year, leaving only the automatic option.
Competition Models (F82/G82): Sharpened Performance
Both the F82 and G82 generations offer Competition models, which represent a step up in performance. These models feature increased power output, sharper handling characteristics, and more aggressive styling cues. Upgrades often include revised suspension tuning, more responsive steering, and unique interior and exterior trim. The Competition package enhances the M4's already impressive capabilities, making it even more capable on the track. However, the firmer ride may not be ideal for daily driving, and the Competition models command a higher price than the standard versions.
CS/CSL Models (F82/G82): Track-Focused Excellence
The CS (Club Sport) and CSL (Competition Sport Lightweight) models represent the pinnacle of M4 performance. These limited-production models are designed for track-focused driving, with significant weight reduction, enhanced aerodynamics, and further-tuned engines. The F82 M4 CS and the G82 M4 CSL offer an unparalleled driving experience, but they come at a significantly higher price and are less comfortable for everyday use. Their limited availability makes them highly sought-after collector's items. These models typically include features like carbon fiber body panels, lightweight wheels, and stripped-down interiors to maximize performance.
S55 Engine: Strengths and Weaknesses
The S55 engine, found in the F82/F83/F84 M4, is a 3.0-liter twin-turbocharged inline-six. Its strengths lie in its responsive power delivery, high-revving nature, and overall reliability. Many owners report achieving impressive performance figures with relatively simple modifications. However, a known weakness is the potential for crank hub failure, particularly in early model years (2014-2016). This issue can lead to significant engine damage if not addressed proactively.
S58 Engine: Strengths and Weaknesses
The S58 engine, found in the G82/G83 M4, is an updated version of the S55. It boasts increased horsepower and torque, thanks to improvements in turbocharger design, cooling, and fuel delivery. The S58 is also known for its refined power delivery and reduced turbo lag. While generally considered more robust than the S55, the S58 is still a relatively new engine, and long-term reliability data is still emerging. Some owners have reported issues with the cooling system in high-performance scenarios, but these cases appear to be less common than the crank hub issue in the S55.
Manual vs. Automatic Transmission
The choice between a manual and automatic transmission is a matter of personal preference. The manual transmission, available in the F82 M4 (and until 2024 in the G82), offers a more engaging and connected driving experience. Many enthusiasts prefer the control and involvement that a manual gearbox provides. The automatic transmission, standard in the G82 (after 2024), offers faster acceleration and smoother shifts. Modern automatics are also more fuel-efficient than manuals. Ultimately, the best choice depends on your driving style and priorities.
Crank Hub Issue (S55 Engine)
The crank hub issue is a well-documented problem affecting early F82 M4 models with the S55 engine. The crank hub connects the crankshaft to the timing chain, and a design flaw can cause it to slip, leading to timing issues and potential engine damage. Symptoms include rough running, misfires, and a loss of power. Preventative measures include replacing the factory crank hub with an aftermarket solution that is pinned or keyed to prevent slippage. This is a crucial modification for owners of early F82 M4s.
Front Grille Design (G82 M4)
The front grille design of the G82 M4 has been a subject of much controversy. Its oversized kidney grilles have been criticized by some for being aesthetically unappealing and out of proportion with the rest of the car's design. Others appreciate the bold and distinctive look. Ultimately, whether or not you like the grille is a matter of personal taste. The aftermarket offers alternative grille designs for those who prefer a more traditional look.
Frequently Asked Questions
Which M4 is the most reliable?
The G82 M4 with the S58 engine is generally considered more reliable than the early F82 M4s due to the crank hub issue. However, preventative maintenance is crucial for both generations.
Is the manual transmission worth it?
For driving enthusiasts who value engagement and control, the manual transmission is highly desirable. However, the automatic offers faster acceleration and smoother shifts.
What is the best year for the F82 M4?
Later model years (2017-2020) of the F82 M4 are generally preferred, as they may have addressed some of the early production issues. However, preventative maintenance regarding the crank hub is still recommended.
Is the Competition package worth the extra cost?
If you prioritize performance and track capabilities, the Competition package is a worthwhile upgrade. However, be prepared for a firmer ride.
How much does it cost to fix the crank hub issue?
Replacing the crank hub with an aftermarket solution typically costs between $2,000 and $4,000, depending on the shop and the specific components used.
Conclusion
Choosing the best BMW M4 depends on your individual needs and preferences. The F82 offers a more analog driving experience with the option of a manual transmission, while the G82 provides more power, modern technology, and improved interior quality. Consider your budget, driving style, and priorities when making your decision. Thorough research and a pre-purchase inspection are crucial to ensuring you choose the right M4 for you.