2025 Audi A6 vs 2025 BMW 4 Series

$58,100 · Sedan

$51,150 · Coupe

Comparison Overview

The most significant numerical disparity between the 2025 Audi A6 and the 2025 BMW 4 Series is the $6,950 difference in Manufacturer's Suggested Retail Price (MSRP), positioning the BMW at $51,150 versus the Audi's $58,100. Fuel economy further distinguishes the pair, with the 4 Series achieving 31 combined MPG compared to the A6's 26 combined MPG, representing a 5 MPG advantage. Performance metrics show the A6 outputting 261 horsepower and 273 lb-ft of torque, narrowly exceeding the 4 Series' 255 horsepower, although the BMW counters with superior torque at 295 lb-ft. Dimensionally, the A6 is notably longer at 194.4 inches against the 4 Series' 187.9 inches, while the BMW offers marginally more utility with 15.5 cu ft of cargo space versus the Audi's 13.7 cu ft. Both vehicles mandate premium unleaded fuel, but the Audi employs an AWD system while the BMW utilizes RWD.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 BMW 4 Series

The BMW 4 Series provides superior fuel economy, achieving 31 combined MPG compared to the Audi A6's 26 combined MPG.

👨‍👩‍👧‍👦 Best for Families

2025 Audi A6

The Audi A6, as a sedan, offers a more conventional four-door layout and greater overall length (194.4 inches) suitable for carrying more passengers.

🏎️ Best for Enthusiasts

2025 BMW 4 Series

The BMW 4 Series delivers higher torque at 295 lb-ft and uses a RWD platform which is often preferred for driving dynamics over the A6's AWD system.

💰 Best Value

2025 BMW 4 Series

The BMW 4 Series has a $6,950 lower starting MSRP and delivers better efficiency metrics for a lower initial investment.

Choose the Audi A6 if...

You require the stability and traction provided by an All-Wheel Drive (AWD) system.
You prioritize the slightly higher horsepower output of 261 hp from the Audi engine.
A traditional sedan body style with a 194.4-inch length is necessary for your parking or garaging situation.

Choose the BMW 4 Series if...

Maximizing fuel economy is critical, as the BMW achieves 36 highway MPG versus the A6's 31 highway MPG.
A lower entry price point of $51,150 is a primary purchasing factor over the A6's $58,100 MSRP.
You prefer the driving characteristics associated with Rear Wheel Drive (RWD) paired with higher torque (295 lb-ft).

Key Dimensions

Dimension	Audi A6	BMW 4 Series
Length	194.4"	187.9"
Width	74.3"	72.9"
Height	57.4"	54.6"
Wheelbase	115.1"	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	✓	✓
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Multi-Adjustable 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	2.0 L	2.0 L
Number of Cylinders	inline 4	inline 4
Base Engine Type	mild hybrid	mild hybrid
Horsepower	261 hp @ 5000 rpm	255 hp @ 4700 rpm
Torque	273 lb-ft @ 1600 rpm	295 lb-ft @ 1600 rpm
Number of Valves	16	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	7-speed automated manual	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)	24/31 MPG	28/36 MPG
EPA Fuel Economy (Combined)	26 MPG	31 MPG
EPA Driving Range (City/Highway)	463.2/598.3 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	✓	✓
Cruise Control on Steering Wheel	✓	✓
Audio Controls on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Rear 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	✓	✓
Three 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	—	✓
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
Speed Sensitive Volume Control	✓	—
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: Bucket	✓	—
Driver Seat Power Adjustments	8-way	10-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Driver Seat Memory Settings	2	2
Passenger Seat Power Adjustments	8-way	10-way
Passenger Seat Height Adjustment	✓	✓
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Seat Material: Leatherette	—	✓
Front Seat Type: Sport	—	✓
Driver Seat Manual Adjustments	—	2-way
Driver Seat Thigh Extension	—	✓
Passenger Seat Manual Adjustments	—	2-way
Passenger Seat Thigh Extension	—	✓

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 Finish	Painted Alloy	Painted Alloy
Wheel Diameter	19 in	—
Tire Type	All Season	—
Tire Size	245/45R H	225/45R18
Spare Tire Type	Temporary	—
Spare Tire Location	Inside Mounted	—
Wheel Size	—	18 x 7.5 in
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 A6 and 2025 BMW 4 Series.

What is the primary drivetrain difference between the 2025 Audi A6 and the 2025 BMW 4 Series?

The Audi A6 comes standard with an All-Wheel Drive (AWD) system, designed for enhanced traction and stability in varied conditions. Conversely, the BMW 4 Series features a Rear Wheel Drive (RWD) configuration, which typically appeals to drivers seeking a more direct performance feel.

How do the cargo capacities compare for these two premium models?

The 2025 BMW 4 Series, despite being a coupe, offers slightly more usable storage volume at 15.5 cubic feet. The 2025 Audi A6 sedan provides 13.7 cubic feet of cargo capacity.

Since both require premium fuel, which vehicle is cheaper to run annually based on MPG?

The BMW 4 Series is significantly cheaper to run due to its superior efficiency, delivering 31 combined MPG compared to the Audi A6's 26 combined MPG, resulting in fewer refueling stops over the same distance.

Is the Audi A6 notably larger than the BMW 4 Series?

Yes, the A6 is physically larger in length, measuring 194.4 inches compared to the 4 Series' 187.9 inches. The Audi is also wider (74.3 inches vs 72.9 inches) and taller (57.4 inches vs 54.6 inches).

Which car provides better performance specifications on paper?

While the Audi A6 has a slight edge in horsepower at 261 hp versus the BMW's 255 hp, the BMW 4 Series compensates with higher torque output, delivering 295 lb-ft against the Audi's 273 lb-ft.