2025 Audi S6 vs 2025 BMW 4 Series

$75,900 · Sedan

$51,150 · Coupe

Comparison Overview

The 2025 Audi S6 is a symphony of understated power, launching with a potent 444 hp and 442 lb-ft of torque, wrapped in a sophisticated sedan shell. Conversely, the 2025 BMW 4 Series coupe captivates with spirited, RWD agility, boasting a 31 MPG combined efficiency rating—a significant 9 MPG advantage over the S6's 22 MPG combined. This comparison pits executive muscle against sporty accessibility. The S6 demands a premium, starting at $75,900, reflected in its formidable output, whereas the 4 Series enters the arena at a sharp $51,150, presenting a substantial $24,750 savings. While the Audi offers All-Wheel Drive stability and greater bulk at 195.0 inches long, the BMW's focus on lightness yields better fuel economy and slightly more usable cargo space at 15.5 cu ft, perfectly encapsulating the traditional performance-luxury divide.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 BMW 4 Series

The BMW 4 Series is the better commuter due to its superior 31 MPG combined fuel economy compared to the Audi S6's 22 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Audi S6

The Audi S6, being a larger sedan (195.0 inches long), offers a more practical cabin and trunk setup suitable for family duties compared to the sportier 4 Series coupe.

🏎️ Best for Enthusiasts

2025 Audi S6

The Audi S6 offers significantly more outright performance with 444 hp and 442 lb-ft of torque, overshadowing the 4 Series' 255 hp output.

💰 Best Value

2025 BMW 4 Series

The BMW 4 Series presents outstanding value, starting at $51,150 against the S6's $75,900 MSRP while still requiring premium fuel.

Choose the Audi S6 if...

You demand blistering acceleration, as the S6 delivers a commanding 444 horsepower.
You require the enhanced traction and stability provided by its standard All-Wheel Drive system.
You prioritize executive sedan comfort and a higher output of 442 lb-ft of torque for highway merging.

Choose the BMW 4 Series if...

Keeping purchase price low is a priority, evidenced by the $51,150 starting MSRP.
Fuel efficiency matters, given the 4 Series achieves an excellent 36 MPG on the highway.
You prefer the pure engagement and dynamics of a lightweight, Rear-Wheel Drive coupe platform.

Key Dimensions

Dimension	Audi S6	BMW 4 Series
Length	195.0"	187.9"
Width	74.3"	72.9"
Height	56.9"	54.6"
Wheelbase	115.3"	112.2"

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	—	✓
Lane Keeping Assist System	—	✓
Driver Attention Alert	—	✓
Brake Drying	—	✓
Brake Preparation System	—	✓
Self-Leveling Headlights	—	✓
Front Height Adjustable Headrests	—	✓
Rear Integrated Headrests	—	✓

Engine

Feature	Audi	BMW
Base Engine Displacement	2.9 L	2.0 L
Number of Cylinders	V6	inline 4
Base Engine Type	mild hybrid	mild hybrid
Horsepower	444 hp	255 hp @ 4700 rpm
Torque	442 lb-ft	295 lb-ft @ 1600 rpm
Number of Valves	24	16
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	8-speed shiftable automatic
Drivetrain Type	all wheel drive	rear wheel drive
Center Differential Type	Limited Slip	—

Fuel

Feature	Audi	BMW
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	19/27 MPG	28/36 MPG
EPA Fuel Economy (Combined)	22 MPG	31 MPG
EPA Driving Range (City/Highway)	366.7/521.1 mi.	434.0/558.0 mi.
Fuel Tank Capacity	19.3 gal.	15.5 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	—	✓
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	205W
Speaker System	10	10
Android Auto (Wireless)	✓	✓
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	3 months	12 months
Subwoofer Count	—	2

Power Feature

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

Frontseats

Feature	Audi	BMW
Front Head Room	38.0 in.	38.0 in.
Front Leg Room	41.3 in.	41.8 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	—
Passenger Seat Thigh Extension	✓	✓
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Seat Material: Leatherette	—	✓
Driver Seat Manual Adjustments	—	2-way
Passenger Seat Manual Adjustments	—	2-way

Rearseats

Feature	Audi	BMW
Rear Head Room	38.1 in.	35.2 in.
Rear Leg Room	37.4 in.	34.5 in.
Rear Shoulder Room	56.5 in.	51.0 in.
Split-Folding Rear Seatback	✓	✓
Folding Rear Seat Feature	✓	—
Pass-Thru Center Armrest	✓	—
Folding Center Armrest	—	✓

Tires and Wheels

Feature	Audi	BMW
Wheel Material	Alloy	—
Wheel Size	21 in	18 x 7.5 in
Tire Type	Performance	—
Tire Size	255/35R21	225/45R18
Spare Tire Type	Temporary	—
Spare Tire Location	Inside Mounted	—
Wheel Finish	—	Painted Alloy
Run Flat Tires	—	✓

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.
Hybrid Component Warranty	—	8 yr./ 100000 mi.
Complimentary Scheduled Maintenance	—	3 yr./ 36000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 Audi S6 and 2025 BMW 4 Series.

How much more powerful is the 2025 Audi S6 compared to the 2025 BMW 4 Series?

The Audi S6 possesses a substantial power advantage, producing 444 hp, which is 189 hp more than the BMW 4 Series' 255 hp. This translates directly to much quicker acceleration times in the Audi.

Which car offers better long-term running costs related to fuel?

The BMW 4 Series is the clear winner for fuel economy, achieving 31 MPG combined versus the Audi S6's 22 MPG combined. This 9 MPG difference will result in significant annual savings.

Is the price difference between these two vehicles justifiable by the specs?

There is a significant $24,750 MSRP gap between the two cars. Buyers must weigh whether the S6's 189 extra horsepower and AWD system justify the much higher initial investment over the RWD 4 Series.

Which vehicle provides superior cargo capacity for hauling gear?

The BMW 4 Series coupe offers slightly more space with 15.5 cubic feet of cargo capacity, while the Audi S6 sedan is rated at 13.7 cubic feet.

Do both vehicles require premium fuel?

Yes, both the 2025 Audi S6 and the 2025 BMW 4 Series mandate the use of premium unleaded fuel to achieve their stated performance figures.

How does the drivetrain affect the driving style?

The Audi S6 uses All-Wheel Drive for superior grip and stability in all conditions, whereas the BMW 4 Series utilizes a traditional Rear-Wheel Drive setup, generally favored by enthusiasts for purer steering feedback and handling dynamics.