You may also like:
The BMW M4 is powered by the BMW S58 3.0-liter twin-turbocharged inline-six engine, producing between 473 and 543 horsepower depending on the variant[1]. The base M4 delivers 473 hp and 406 lb-ft of torque, while the M4 Competition generates 503 hp (523 hp with xDrive) and 479 lb-ft of torque[2]. The most powerful street-legal version, the M4 CSL, produces 543 hp and 479 lb-ft of torque[3].
S58 Engine Overview
The S58 is BMW M Division’s high-performance inline-six engine, first introduced in the F97 X3 M and F98 X4 M before powering the current G82 M4[4].
Core Engine Specifications
| Specification | Value |
|---|---|
| Engine Code | S58B30T0[4] |
| Displacement | 2,993 cc (3.0L)[2] |
| Configuration | Inline 6-cylinder[2] |
| Valvetrain | 24-valve DOHC[2] |
| Turbocharging | Twin mono-scroll turbochargers[4] |
| Compression Ratio | 9.3:1[4] |
| Redline | 7,200 rpm[5] |
| Fuel System | Direct injection[2] |
The S58 features a closed-deck aluminum cylinder block, forged chrome molybdenum crankshaft, forged aluminum pistons, and forged steel connecting rods[6]. These components provide exceptional strength for handling high boost pressures and track-focused driving.
Power Output by M4 Variant
BMW offers the S58 engine in multiple states of tune across the M4 lineup[1]:
| Model | Horsepower | Torque | 0-60 mph | Top Speed |
|---|---|---|---|---|
| M4 (base) | 473 hp @ 6,250 rpm[1] | 406 lb-ft[1] | 4.1 sec[7] | 155 mph (limited) |
| M4 Competition RWD | 503 hp @ 6,250 rpm[2] | 479 lb-ft @ 2,750 rpm[2] | 3.5 sec | 155 mph (limited) |
| M4 Competition xDrive | 523 hp[8] | 479 lb-ft[6] | 2.8 sec[9] | 155 mph (limited) |
| M4 CS | 543 hp @ 6,250 rpm[10] | 479 lb-ft @ 2,750 rpm[10] | 3.2 sec[10] | 188 mph[10] |
| M4 CSL | 550 hp (405 kW)[3] | 479 lb-ft | 3.4 sec | 191 mph |
The 2025 model year brought a power increase to the Competition xDrive variant, raising output from 503 hp to 523 hp[8].
For more M Division information, see our BMW M3 and BMW M5 guides.
S58 vs Previous S55 Engine
The S58 replaced the S55 engine from the previous-generation F82 M4[5]:
| Specification | S55 (F82 M4) | S58 (G82 M4) |
|---|---|---|
| Displacement | 3.0L | 3.0L |
| Configuration | Inline-6 Twin-Turbo | Inline-6 Twin-Turbo |
| Base Power | 425 hp[5] | 473 hp[1] |
| Base Torque | 406 lb-ft | 406 lb-ft |
| Competition Power | 444 hp | 503 hp |
| Cylinder Block | Open-deck | Closed-deck[6] |
| Turbochargers | Twin mono-scroll | Twin mono-scroll |
| Cooling | Standard | Enhanced 3D-printed head[4] |
The S58 represents a 48-hp increase over the base S55 while improving responsiveness and high-RPM performance[5]. The closed-deck construction provides greater rigidity for handling increased boost pressures.
Advanced Engine Technology
BMW M TwinPower Turbo
The S58 incorporates BMW’s latest TwinPower Turbo technology, which includes[4]:
- Twin mono-scroll turbochargers: Positioned between the cylinder banks for optimal exhaust flow and minimal lag
- Electronically controlled wastegate: Enables precise boost pressure management and faster response
- Variable valve timing (VANOS): Adjusts intake and exhaust cam timing for optimal performance across the rev range
- Valvetronic: BMW’s variable valve lift system for instant throttle response
Cooling Innovations
The S58 features a 3D-printed cylinder head cooling system that provides more efficient coolant flow than traditionally manufactured components[4]. This technology allows the engine to sustain high output during extended track sessions without heat soak.
Forged Internals
Unlike the S55, the S58 uses fully forged internals throughout[6]:
- Forged chrome molybdenum steel crankshaft
- Forged aluminum pistons
- Forged steel connecting rods
- Reinforced main bearings
These components enable the engine to handle significant power increases through tuning while maintaining reliability.
Real-World Performance
Independent testing has validated BMW’s performance claims across M4 variants[11]:
| Test | Result | Source |
|---|---|---|
| M4 (manual) 0-60 mph | 4.4 sec | Edmunds[11] |
| M4 (manual) quarter mile | 12.4 sec @ 115.8 mph | Edmunds[11] |
| M4 Competition xDrive Conv. 0-60 | 3.2 sec | Motor Trend[12] |
| M4 Competition xDrive Conv. quarter mile | 11.3 sec @ 122.8 mph | Motor Trend[12] |
| M4 CS 0-62 mph | 3.4 sec | BMW claimed[10] |
The M4 Competition with xDrive all-wheel drive delivers the quickest acceleration due to superior traction, while the rear-wheel-drive manual offers a more engaging driving experience at the expense of outright speed[1].
Transmission Options
The S58 engine pairs with different transmissions depending on the M4 variant[1]:
| Model | Available Transmissions | Drivetrain |
|---|---|---|
| M4 (base) | 6-speed manual | RWD only[1] |
| M4 Competition | 8-speed M Steptronic automatic | RWD or xDrive[1] |
| M4 CS | 8-speed M Steptronic automatic | xDrive only[10] |
| M4 CSL | 8-speed M Steptronic automatic | RWD only[3] |
The 6-speed manual transmission is exclusive to the base M4 with 473 hp and provides the most direct connection between driver and engine[1].
S58 Engine Reliability
The S58 has proven generally reliable, though owners have reported several common issues worth monitoring[13]:
| Issue | Prevalence | Symptoms |
|---|---|---|
| Oil consumption | 15-20% of owners[13] | Frequent top-ups needed |
| Oil leaks | 10-15% of owners[13] | Visible spots, low level warnings |
| Heat management | Variable[13] | Overheating during extended track use |
| VANOS timing issues | Rare[13] | Power loss, rough running |
Proper maintenance using BMW-approved synthetic oil (0W-30 or 0W-40) and adherence to service intervals helps mitigate these concerns[13]. The S58 is considered more robust than its S55 predecessor due to the closed-deck construction and forged internals[4].
For detailed maintenance information, see our BMW maintenance cost guide.
Key Takeaways
- The BMW M4 is powered by the S58 3.0-liter twin-turbocharged inline-six engine, producing 473-543 hp depending on variant
- The 2025 M4 Competition xDrive received a power boost to 523 hp, up from 503 hp in previous years
- The S58 engine features closed-deck construction, forged internals, and 3D-printed cooling components not found in the previous S55
- The base M4 is the only variant available with a 6-speed manual transmission; all Competition and higher trims use an 8-speed automatic
- The most powerful production M4 is the CSL with 550 hp (405 kW), capable of a 191 mph top speed
Frequently Asked Questions
Is the BMW M4 engine the same as the M3?
Yes, the BMW M4 and M3 share the identical S58 3.0-liter twin-turbocharged inline-six engine[4]. Both models offer the same power outputs: 473 hp in base form, 503 hp in Competition trim, and 543 hp in CS variants. The only difference between the two is body style—the M4 is a two-door coupe while the M3 is a four-door sedan.
How much horsepower does a 2025 BMW M4 have?
The 2025 BMW M4 produces between 473 and 543 hp depending on the variant[1]. The base M4 with manual transmission makes 473 hp, the Competition RWD produces 503 hp, the Competition xDrive delivers 523 hp (increased from 503 hp), and the M4 CS generates 543 hp[8]. All versions use the S58 3.0L twin-turbo inline-six engine.
What is the difference between BMW M4 and M4 Competition engine?
The M4 Competition uses a higher-output version of the same S58 engine found in the base M4[1]. The base M4 produces 473 hp and 406 lb-ft of torque with a 6-speed manual and rear-wheel drive. The M4 Competition generates 503 hp (523 hp with xDrive) and 479 lb-ft of torque, paired exclusively with an 8-speed automatic transmission[2]. The Competition also features upgraded cooling and chassis components.
Does the BMW M4 have a V8 engine?
No, the BMW M4 has never used a V8 engine. All generations of the M4 (and its predecessor, the M3 Coupe) have used inline-six engines[4]. The current G82 M4 uses the S58 3.0L twin-turbocharged inline-six, while the previous F82 M4 used the S55 twin-turbo inline-six. BMW M Division has historically favored inline-six engines for their smooth power delivery and balanced weight distribution.
How does the BMW M4 engine compare to Mercedes-AMG C63?
The BMW M4 Competition and Mercedes-AMG C63 S both produce similar power figures (around 503-510 hp) but use different engine configurations[14]. The M4 Competition uses a 3.0L twin-turbo inline-six (S58), while the previous C63 S used a 4.0L twin-turbo V8. The V8 C63 S produces more torque (700 Nm vs 650 Nm) but across a narrower band[14]. The new C63 S E-Performance has switched to a turbocharged four-cylinder hybrid system.
References
- Car and Driver. (2025). 2026 BMW M4 Review, Pricing, and Specs. https://www.caranddriver.com/bmw/m4
- Edmunds. (2025). 2025 BMW M4 Competition Specs & Features. https://www.edmunds.com/bmw/m4/2025/st-402028376/features-specs/
- BMW M. (2023). BMW M4 CSL. https://www.bmw-m.com/en/all-models/overview-m-and-m-performance/bmw-m4-csl/2022/bmw-m4-csl.html
- BMW Blog. (2024). BMW S58: Reliability, Efficiency and Tuning. https://www.bmwblog.com/2024/04/29/bmw-s58-reliability-efficiency-and-tuning/
- CarBuzz. (2024). Straight-Six Perfection: Unpacking The BMW M4’s Potent Engine. https://carbuzz.com/straight-six-perfection-unpacking-the-bmw-m4s-potent-engine/
- Carscoops. (2024). 2025 BMW M4 Competition Review: An Addictive Triumph Of Speed. https://www.carscoops.com/2024/11/2025-bmw-m4-competition-review-a-blistering-triumph-of-speed/
- Long Beach BMW. (2025). What Engine Does a BMW M4 Have? https://www.longbeachbmw.com/blog/2025/may/28/what-engine-does-a-bmw-m4-have.htm
- Edmunds. (2025). 2025 BMW M4 Competition xDrive Specs & Features. https://www.edmunds.com/bmw/m4/2025/st-402028378/features-specs/
- Gebhardt BMW. (2024). Specs and Features of the 2024 BMW M4. https://www.gebhardtbmw.com/specs-features-2024-M4-blog.htm
- TheTopher. (2025). 2025 BMW M4 CS – POV Track Driving Impressions. https://www.youtube.com/watch?v=eoKrFzdG6W4
- Edmunds. (2025). Tested: 2025 BMW M4 Is Pure and Nearly Perfect. https://www.edmunds.com/car-news/2025-bmw-m4-track-tested.html
- Motor Trend. (2025). 2025 BMW M4 Competition xDrive Convertible First Test Review. https://www.motortrend.com/reviews/2025-bmw-m4-competition-xdrive-convertible-first-test-review
- Engine Explained. (2025). Reliability and Problems of the BMW S58 Engine. https://www.engineexplained.com/bmw-s58-engine-problems-a-comprehensive-review/
- CarExpert. (2021). 2022 BMW M4 Competition v Mercedes-AMG C63 S – Track Comparison. https://www.carexpert.com.au/car-comparisons/2022-bmw-m4-competition-v-mercedes-amg-c63-s-track-comparison
I am a senior automotive analyst at Autvex. Expert vehicle evaluations, in-depth reviews, and objective analysis helping readers make informed automotive decisions with years of industry experience.
