2025 Audi S6 vs 2025 BMW M4

$75,900 · Sedan

$79,700 · Coupe

Comparison Overview

The battle between the 2025 Audi S6 and the 2025 BMW M4 is a clash between refined executive speed and raw, focused driving poetry. The S6 ignites the senses with a muscular 444 hp and 442 lb-ft of torque delivered seamlessly through its 8-speed automatic and sophisticated all-wheel drive system, netting a respectable 22 MPG combined despite its performance focus. Contrast this with the visceral thrill of the M4, boasting 473 hp channeled exclusively through its engaging 6-speed manual transmission to the rear wheels, albeit at a cost of 19 MPG combined. The S6, priced at $75,900, offers a slightly more practical 13.7 cu ft of cargo space in its sedan form, while the $79,700 M4 is shorter by nearly 6 inches at 189.1 inches, focusing purely on coupe agility. For drivers prioritizing daily usability blended with immense power, the Audi impresses; for those chasing the purest connection to the road via a manual gearbox, the M4 beckons.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Audi S6

The Audi S6 provides superior daily usability with its sedan body, better combined fuel economy at 22 MPG, and the convenience of an 8-speed automatic transmission.

👨‍👩‍👧‍👦 Best for Families

2025 Audi S6

The S6 wins due to its four-door sedan configuration and larger 13.7 cu ft cargo capacity compared to the M4's coupe body and smaller 12 cu ft trunk.

🏎️ Best for Enthusiasts

2025 BMW M4

The BMW M4 appeals more to purists with its higher 473 hp output and the highly engaging option of a 6-speed manual transmission driving the rear wheels.

💰 Best Value

2025 Audi S6

The Audi S6 is $3,800 less expensive while delivering standard AWD and better fuel efficiency, making it a smarter overall proposition.

Choose the Audi S6 if...

You require the practicality of a four-door sedan for daily driving duties.
You value efficiency, as the S6 achieves 22 MPG combined versus the M4's 19 MPG.
You prefer the security and all-weather capability of standard all-wheel drive.

Choose the BMW M4 if...

You demand the absolute highest power figure available, with the M4 topping out at 473 hp.
You insist on a fully engaging driving experience provided by the 6-speed manual transmission.
You prefer the tighter dimensions and dynamic feel of a dedicated two-door coupe.

Key Dimensions

Dimension	Audi S6	BMW M4
Length	195.0"	189.1"
Width	74.3"	74.3"
Height	56.9"	54.8"
Wheelbase	115.3"	112.5"

Features Comparison

Safety

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

Engine

Feature	Audi	BMW
Base Engine Displacement	2.9 L	3.0 L
Number of Cylinders	V6	inline 6
Base Engine Type	mild hybrid	gas
Horsepower	444 hp	473 hp @ 6250 rpm
Torque	442 lb-ft	406 lb-ft @ 2650 rpm
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	Audi	BMW
Transmission Type	8-speed shiftable automatic	6-speed manual
Drivetrain Type	all wheel drive	rear wheel drive
Center Differential Type	Limited Slip	—
Rear Differential Type	—	Limited Slip

Fuel

Feature	Audi	BMW
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	19/27 MPG	16/23 MPG
EPA Fuel Economy (Combined)	22 MPG	19 MPG
EPA Driving Range (City/Highway)	366.7/521.1 mi.	249.6/358.8 mi.
Fuel Tank Capacity	19.3 gal.	15.6 gal.

Comfort & Convenience

Feature	Audi	BMW
Push Button Start	✓	✓
Power Tilt and Telescopic Steering Wheel	✓	—
Transmission Controls on Steering Wheel	✓	—
Audio Controls on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Rear and Side View Camera	✓	—
Front Parking Sensors	✓	✓
Rear Parking Sensors	✓	✓
Cruise Control	✓	✓
Universal Remote Transmitter	✓	✓
Front Cupholders	✓	✓
Rear Cupholders	✓	—
Front Door Pockets	✓	✓
Rear Door Pockets	✓	—
Front Seatback Storage	✓	—
Leather Steering Wheel	✓	✓
Heated Steering Wheel	✓	—
Four Zone Climate Control	✓	—
Rear Ventilation Ducts with Fan Control	✓	—
Interior Air Filtration	✓	✓
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	—
Tilt and Telescopic Steering Wheel	—	✓
Cruise Control on Steering Wheel	—	✓
Rear View Camera	—	✓
Driver Assisted Parking Assist	—	✓
Wireless Charging Pad	—	✓
Dual Zone Climate Control	—	✓
Rear Ventilation Ducts	—	✓

In Car Entertainment

Feature	Audi	BMW
Infotainment Display	10.1 in	14.9 in
AM/FM Stereo	✓	✓
Stereo Power	180W	464W
Speaker System	10	16
Android Auto (Wireless)	✓	✓
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	3 months	12 months
Premium Speaker Brand	—	Harman/Kardon
Subwoofer Count	—	2
Surround Audio	—	Discrete

Power Feature

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

Frontseats

Feature	Audi	BMW
Front Head Room	38.0 in.	40.3 in.
Front Leg Room	41.3 in.	41.7 in.
Front Shoulder Room	57.8 in.	55.1 in.
Seat Material: Leather	✓	—
Front Seat Type: Sport	✓	✓
Driver Seat Power Adjustments	8-way	10-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Driver Seat Thigh Extension	✓	✓
Driver Seat Memory Settings	2	2
Passenger Seat Power Adjustments	8-way	10-way
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	Power
Passenger Seat Thigh Extension	✓	✓
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Seat Material: Premium Leather	—	✓

Rearseats

Feature	Audi	BMW
Rear Head Room	38.1 in.	35.8 in.
Rear Leg Room	37.4 in.	34.7 in.
Rear Shoulder Room	56.5 in.	51.0 in.
Split-Folding Rear Seatback	✓	✓
Folding Rear Seat Feature	✓	—
Pass-Thru Center Armrest	✓	—

Tires and Wheels

Feature	Audi	BMW
Wheel Material	Alloy	—
Wheel Size	21 in	19 x 10.5 in
Tire Type	Performance	Performance
Tire Size	255/35R21	285/35R Z
Spare Tire Type	Temporary	—
Spare Tire Location	Inside Mounted	—
Wheel Finish	—	Painted Alloy

Suspension

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

Warranty

Feature	Audi	BMW
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.	12 yr./ unlimited mi.
Roadside Assistance	4 yr./ unlimited mi.	4 yr./ unlimited mi.
Complimentary Scheduled Maintenance	—	3 yr./ 36000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 Audi S6 and 2025 BMW M4.

How much quicker is the 2025 BMW M4 in a straight line compared to the Audi S6?

The M4 holds a 29 hp advantage, generating 473 hp compared to the S6's 444 hp. However, both utilize premium unleaded fuel, and real-world acceleration times depend heavily on how the S6's AWD launches versus the M4's RWD setup.

Is the higher fuel economy of the Audi S6 noticeable in real-world driving?

Yes, the S6 offers a significant 22 MPG combined rating versus the M4's 19 MPG combined, meaning commuters will see fewer stops at the pump over a year of driving.

Which vehicle offers superior utility for hauling luggage or equipment?

The Audi S6 sedan provides 13.7 cubic feet of cargo space, slightly edging out the BMW M4 coupe which is rated at 12 cubic feet.

What is the primary transmission difference influencing the driving experience?

The S6 utilizes a smooth, quick 8-speed shiftable automatic transmission optimized for consistent power delivery, whereas the M4 prominently features a more involving 6-speed manual transmission for enthusiast control.

How does the exterior footprint of these two performance machines compare?

The Audi S6 is slightly longer at 195.0 inches, while the BMW M4 is noticeably lower in height at 54.8 inches, hinting at its ground-hugging coupe stance.

Considering the price difference, is the M4's extra power worth the cost?

The M4 commands a $3,800 premium over the S6; whether the extra 29 horsepower justifies this cost depends entirely on the driver's willingness to trade AWD grip and fuel economy for pure RWD exhilaration.