2025 BMW M4 CS vs 2025 Mercedes-Benz S-Class

$123,500 · Coupe

$117,750 · Sedan

Comparison Overview

The most significant numerical disparity between the 2025 BMW M4 CS and the 2025 Mercedes-Benz S-Class lies in power output, where the M4 CS delivers a substantial 101 more horsepower (543 hp vs. 442 hp). This performance gap is offset by a considerable 6 MPG advantage for the S-Class, which achieves 24 combined MPG compared to the M4 CS's 18 combined MPG. Priced at $123,500, the M4 CS commands a $5,750 premium over the S-Class's MSRP of $117,750. The M4 CS offers 479 lb-ft of torque against the S-Class's 413 lb-ft, emphasizing the coupe's focus on acceleration. Conversely, the S-Class is physically larger, spanning 208.2 inches in length, while the M4 CS measures 189.0 inches, reflecting their distinct segment positioning (coupe vs. full-size luxury sedan).

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Mercedes-Benz S-Class

The S-Class is superior for commuting due to its significantly better fuel economy of 24 combined MPG versus the M4 CS's 18 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Mercedes-Benz S-Class

The S-Class wins for families as a larger sedan with a marginally superior cargo capacity of 12.8 cu ft compared to the M4 CS coupe's 12.0 cu ft.

🏎️ Best for Enthusiasts

2025 BMW M4 CS

The M4 CS is the enthusiast choice, offering 543 hp and 479 lb-ft of torque, vastly exceeding the S-Class's output figures.

💰 Best Value

2025 Mercedes-Benz S-Class

The S-Class provides better overall value, costing $5,750 less while delivering substantially superior fuel efficiency (24 MPG vs. 18 MPG).

Choose the BMW M4 CS if...

Your primary focus is outright performance, benefiting from the M4 CS's 543 horsepower rating.
You prefer the handling characteristics and feel of a shorter 189.0-inch coupe body style.
You require the higher torque delivery of 479 lb-ft standard for aggressive acceleration.

Choose the Mercedes-Benz S-Class if...

Fuel costs are a major concern, as the S-Class delivers 24 combined MPG versus the M4 CS's 18 MPG.
You need the extra physical size and comfort associated with a 208.2-inch sedan length.
You wish to save $5,750 on the initial purchase price while still having an AWD luxury vehicle.

Key Dimensions

Dimension	BMW M4 CS	Mercedes-Benz S-Class
Length	189.0"	208.2"
Width	75.5"	76.9"
Height	55.1"	59.2"
Wheelbase	112.5"	126.6"

Features Comparison

Safety

Feature	BMW	Mercedes-Benz
Blind Spot Monitor	✓	✓
Lane Departure Warning	✓	✓
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front Side-Mounted Airbags	✓	✓
Front Head Airbags	✓	✓
Rear Head Airbags	✓	✓
Passenger Airbag Occupant Sensing Deactivation	✓	✓
Electronic Stability Control	✓	✓
Traction Control System	✓	✓
Anti-lock Brakes (ABS)	4-Wheel	4-Wheel
Front Ventilated Disc Brakes	✓	✓
Rear Ventilated Disc Brakes	✓	✓
Brake Preparation System	✓	✓
Tire Pressure Monitoring System	✓	✓
Headlight Delay-Off	✓	✓
LED Headlights	✓	✓
Daytime Running Lights	✓	✓
Front Headrests	2	2
Front Fixed Headrests	✓	—
Rear Headrests	2	3
Rear Fixed Headrests	✓	—
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Lane Keeping Assist System	—	✓
Front Cross Traffic Alert	—	✓
Rear Cross Traffic Alert	—	✓
Driver Attention Alert	—	✓
Dual Rear Side-Mounted Airbags	—	✓
LATCH System	—	✓
Rear Door Child Safety Locks	—	✓
Brake Drying	—	✓
Brake Assist	—	✓
Automatic Headlights	—	✓
Adaptive Headlights	—	✓
Self-Leveling Headlights	—	✓
Cornering Lights	—	✓
Integrated Turn Signal Mirrors	—	✓
Front Power Adjustable Headrests	—	✓
Rear Multi-Adjustable Headrests	—	✓
Rear Center 3-Point Seatbelt	—	✓

Engine

Feature	BMW	Mercedes-Benz
Base Engine Displacement	3.0 L	3.0 L
Number of Cylinders	inline 6	inline 6
Base Engine Type	gas	mild hybrid
Horsepower	543 hp @ 6250 rpm	442 hp
Torque	479 lb-ft @ 2750 rpm	413 lb-ft
Number of Valves	24	24
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	BMW	Mercedes-Benz
Transmission Type	8-speed shiftable automatic	9-speed shiftable automatic
Drivetrain Type	all wheel drive	all wheel drive
[object Object]	✓	—
[object Object]	✓	—
Center Differential Type	—	Limited Slip

Fuel

Feature	BMW	Mercedes-Benz
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	16/23 MPG	21/31 MPG
EPA Fuel Economy (Combined)	18 MPG	24 MPG
EPA Driving Range (City/Highway)	249.6/358.8 mi.	420.0/620.0 mi.
Fuel Tank Capacity	15.6 gal.	20.0 gal.

Comfort & Convenience

Feature	BMW	Mercedes-Benz
Push Button Start	✓	✓
Tilt and Telescopic Steering Wheel	✓	—
Transmission Controls on Steering Wheel	✓	✓
Cruise Control on Steering Wheel	✓	✓
Audio Controls on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Rear View Camera	✓	✓
Front Parking Sensors	✓	✓
Rear Parking Sensors	✓	✓
Wireless Charging Pad	✓	✓
Cruise Control	✓	—
Universal Remote Transmitter	✓	✓
Front Door Pockets	✓	✓
Steering Wheel Material	Simulated Suede/Carbon Fiber	—
Dual Zone Climate Control	✓	✓
Rear Ventilation Ducts	✓	✓
Interior Air Filtration	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Power Tilt and Telescopic Steering Wheel	—	✓
Front View Camera	—	✓
Side View Camera	—	✓
Automatic Parking Assist	—	✓
Adaptive Cruise Control	—	✓
Front Cupholders	—	✓
Rear Cupholders	—	✓
Rear Door Pockets	—	✓
Overhead Console with Storage	—	✓
Front Seatback Storage	—	✓
Leather Steering Wheel	—	✓
Wood Trim on Steering Wheel	—	✓
Extended Cabin Heating/Cooling	—	✓
Sun Sensor	—	✓
Turn Signal Indicators in Mirrors	—	✓

In Car Entertainment

Feature	BMW	Mercedes-Benz
Infotainment Display	14.9 in	12.8 in
AM/FM Stereo	✓	✓
Premium Speaker Brand	Harman/Kardon	Burmester
Surround Audio	Discrete	Discrete
Android Auto (Wired)	✓	—
Apple CarPlay (Wired)	✓	—
USB Port	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	12 months	6 months
Stereo Power	—	710W
Speaker System	—	15
Subwoofer Count	—	2
Android Auto (Wireless)	—	✓
Apple CarPlay (Wireless)	—	✓
Auxiliary Audio Input	—	✓
USB Port with External Media Control	—	✓
Memory Card Slot	—	✓
Speed Sensitive Volume Control	—	✓

Power Feature

Feature	BMW	Mercedes-Benz
One-Touch Power Windows	2	4
Keyless Entry	✓	✓
Heated Mirrors	✓	✓
Moonroof Type	—	1st Row Power Glass Extended
Reverse Tilt Passenger Mirror	—	✓

Frontseats

Feature	BMW	Mercedes-Benz
Seat Material: Premium Leather	✓	—
Front Seat Type: Sport	✓	—
Driver Seat Height Adjustment	✓	✓
Driver Seat Memory Settings	2	3
Passenger Seat Height Adjustment	✓	✓
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Front Head Room	—	42.1 in.
Front Leg Room	—	41.4 in.
Front Shoulder Room	—	59.6 in.
Seat Material: Leather	—	✓
Front Seat Type: Bucket	—	✓
Driver Seat Power Adjustments	—	12-way
Driver Seat Lumbar Support	—	Power
Driver Seat Thigh Extension	—	✓
Passenger Seat Power Adjustments	—	12-way
Passenger Seat Lumbar Support	—	Power
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	3
Driver Seat Ventilation	—	✓
Passenger Seat Ventilation	—	✓
Seat Massage Function	—	✓

Rearseats

Feature	BMW	Mercedes-Benz
Split-Folding Rear Seatback	✓	—
Rear Head Room	—	39.4 in.
Rear Leg Room	—	43.8 in.
Rear Shoulder Room	—	59.0 in.
Folding Center Armrest	—	✓

Tires and Wheels

Feature	BMW	Mercedes-Benz
Wheel Finish	Painted Alloy	—
Wheel Size	20 x 10.5 in.	19 x 8.5 in
Tire Type	Performance	—
Tire Size	285/30R	255/45R19
Wheel Material	—	Alloy
Run Flat Tires	—	✓

Suspension

Feature	BMW	Mercedes-Benz
Four-Wheel Independent Suspension	✓	✓
Front Stabilizer Bar	✓	✓
Rear Stabilizer Bar	✓	✓

Warranty

Feature	BMW	Mercedes-Benz
Basic Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Corrosion/Rust Warranty	12 yr./ unlimited mi.	4 yr./ 50000 mi.
Roadside Assistance	4 yr./ unlimited mi.	4 yr./ 50000 mi.
Complimentary Scheduled Maintenance	3 yr./ 36000 mi.	—
Hybrid Component Warranty	—	6 yr./ 62000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 BMW M4 CS and 2025 Mercedes-Benz S-Class.

Which vehicle has the performance advantage based on the specifications provided?

The 2025 BMW M4 CS holds a decisive performance advantage, producing 543 hp and 479 lb-ft of torque. This output is significantly higher than the 2025 Mercedes-Benz S-Class, which is rated at 442 hp and 413 lb-ft of torque.

How do the operating costs compare, considering fuel economy?

The S-Class offers substantially lower running costs due to fuel efficiency, achieving 24 combined MPG. The M4 CS consumes fuel at a higher rate, rated only at 18 combined MPG, necessitating more frequent stops for premium unleaded fuel.

Is the price difference directly related to the horsepower difference?

The M4 CS costs $123,500, which is $5,750 more than the S-Class's $117,750 MSRP. This price premium secures the M4 CS's 101 hp advantage, positioning it as the track-focused option rather than the economy/luxury cruiser.

Which vehicle offers more physical space for occupants and cargo?

While both vehicles share the same 12 cu ft cargo capacity (with the S-Class listing 12.8 cu ft), the S-Class is the larger vehicle overall, measuring 208.2 inches long compared to the M4 CS's 189.0 inches in length.