2025 Audi S4 vs 2025 BMW 4 Series

$54,900 · Sedan

$51,150 · Coupe

Comparison Overview

Deciding between the 2025 Audi S4 and the 2025 BMW 4 Series often comes down to balancing spirited performance against long-term running costs. The buyer dilemma centers on power versus economy in a premium package. The Audi S4 boasts significantly more muscle, putting down 349 hp and 369 lb-ft of torque, making it the clear performance leader compared to the BMW's 255 hp and 295 lb-ft. However, the S4 asks for premium fuel while delivering a combined 24 MPG, which pales next to the 4 Series' excellent 31 MPG combined rating. Furthermore, the BMW undercuts the Audi on initial outlay by $3,750, starting at $51,150 versus the S4's $54,900. Despite the power gap, the 4 Series offers 1.5 inches more length and an extra 3.5 cubic feet of cargo space (15.5 cu ft vs. 12 cu ft in the sedan), appealing to practicality.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 BMW 4 Series

The BMW 4 Series wins for daily commuting due to its superior fuel economy, achieving 31 MPG combined compared to the S4's 24 MPG.

👨‍👩‍👧‍👦 Best for Families

2025 BMW 4 Series

While both are small, the 4 Series offers slightly more usable space with 15.5 cubic feet of cargo capacity compared to the S4's 12 cubic feet.

🏎️ Best for Enthusiasts

2025 Audi S4

The Audi S4 is the choice for driving thrills, offering 94 more horsepower (349 hp) and 74 more lb-ft of torque (369 lb-ft).

💰 Best Value

2025 BMW 4 Series

The BMW 4 Series provides better overall value by saving $3,750 upfront and achieving better fuel efficiency.

Choose the Audi S4 if...

You prioritize maximum acceleration and engine output, benefiting from the S4's 349 hp.
You prefer the stability of an All-Wheel Drive system provided by the S4's standard setup.
You desire the traditional four-door sedan practicality offered by the Audi S4 body style.

Choose the BMW 4 Series if...

Saving money on fuel is critical, as the 4 Series achieves 31 MPG combined versus the S4's 24 MPG.
You want a lower entry price, saving $3,750 compared to the S4's MSRP.
You prefer the sporty look and slightly larger storage area of the Coupe body type (15.5 cu ft).

Key Dimensions

Dimension	Audi S4	BMW 4 Series
Length	187.5"	187.9"
Width	72.7"	72.9"
Height	56.2"	54.6"
Wheelbase	111.0"	112.2"

Features Comparison

Safety

Feature	Audi	BMW
Lane Departure Warning	✓	✓
Lane Keeping Assist System	✓	✓
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	✓	✓
LATCH System	✓	✓
Rear Door Child Safety Locks	✓	—
Anti-lock Brakes (ABS)	4-Wheel	4-Wheel
Front Ventilated Disc Brakes	✓	✓
Rear Ventilated Disc Brakes	✓	✓
Brake Preparation System	✓	✓
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
Headlight Delay-Off	✓	✓
LED Headlights	✓	✓
Self-Leveling Headlights	✓	✓
Daytime Running Lights	✓	✓
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Integrated Headrests	✓	—
Rear Headrests	3	2
Rear Height Adjustable Headrests	✓	—
Rear Center 3-Point Seatbelt	✓	—
Engine Immobilizer	✓	✓
Blind Spot Monitor	—	✓
Driver Attention Alert	—	✓
Brake Drying	—	✓
Front Height Adjustable Headrests	—	✓
Rear Integrated Headrests	—	✓
Anti-Theft Alarm System (Remote)	—	✓

Engine

Feature	Audi	BMW
Base Engine Displacement	3.0 L	2.0 L
Number of Cylinders	V6	inline 4
Base Engine Type	gas	mild hybrid
Horsepower	349 hp @ 6300 rpm	255 hp @ 4700 rpm
Torque	369 lb-ft @ 3200 rpm	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 (recommended)	premium unleaded (required)
EPA Fuel Economy (City/Highway)	20/29 MPG	28/36 MPG
EPA Fuel Economy (Combined)	24 MPG	31 MPG
EPA Driving Range (City/Highway)	306.0/443.7 mi.	434.0/558.0 mi.
Fuel Tank Capacity	15.3 gal.	15.5 gal.

Comfort & Convenience

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

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
Subwoofer Count	1	2
Apple CarPlay (Wireless)	✓	✓
Android Auto (Wired)	✓	—
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Android Auto (Wireless)	—	✓
Satellite Radio	—	✓
Satellite Radio Trial Period	—	12 months

Power Feature

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

Frontseats

Feature	Audi	BMW
Front Head Room	37.3 in.	38.0 in.
Front Leg Room	41.3 in.	41.8 in.
Front Shoulder Room	55.9 in.	55.1 in.
Seat Material: Leather/Sueded Microfiber	✓	—
Front Seat Type: Sport	✓	✓
Driver Seat Power Adjustments	8-way	10-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Passenger Seat Power Adjustments	8-way	10-way
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	—
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Seat Massage Function	✓	—
Seat Material: Leatherette	—	✓
Driver Seat Manual Adjustments	—	2-way
Driver Seat Thigh Extension	—	✓
Driver Seat Memory Settings	—	2
Passenger Seat Manual Adjustments	—	2-way
Passenger Seat Thigh Extension	—	✓

Rearseats

Feature	Audi	BMW
Rear Head Room	37.4 in.	35.2 in.
Rear Leg Room	35.7 in.	34.5 in.
Rear Shoulder Room	54.5 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 Diameter	19 in	—
Tire Type	Performance	—
Tire Size	✓	225/45R18
Spare Tire Type	Temporary	—
Spare Tire Location	Inside Mounted	—
Wheel Finish	—	Painted Alloy
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.
Drivetrain Warranty	—	4 yr./ 50000 mi.
Hybrid Component Warranty	—	8 yr./ 100000 mi.
Corrosion/Rust Warranty	—	12 yr./ unlimited mi.
Roadside Assistance	—	4 yr./ unlimited mi.
Complimentary Scheduled Maintenance	—	3 yr./ 36000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 Audi S4 and 2025 BMW 4 Series.

Is the Audi S4 or BMW 4 Series faster in a straight line?

The 2025 Audi S4 is significantly faster based on power specs, delivering 349 horsepower and 369 lb-ft of torque. This gives it a measurable edge over the BMW 4 Series, which produces 255 hp and 295 lb-ft of torque.

How much more expensive is the Audi S4 compared to the BMW 4 Series?

The 2025 Audi S4 has an MSRP of $54,900, which is $3,750 more than the starting price of the 2025 BMW 4 Series at $51,150.

Which car is better for long highway road trips regarding fuel consumption?

The BMW 4 Series is superior for long trips, achieving a highway rating of 36 MPG compared to the Audi S4's 29 MPG highway rating.

What is the main difference in drivetrain layout?

The Audi S4 comes equipped with standard All-Wheel Drive for enhanced traction in various conditions. In contrast, the standard BMW 4 Series utilizes a Rear Wheel Drive setup.

Does the body style affect cargo capacity between these two models?

Yes, the sedan body of the Audi S4 provides 12 cubic feet of cargo space, while the Coupe body of the BMW 4 Series offers slightly more room at 15.5 cubic feet.

Do both cars require premium gasoline?

Both vehicles recommend premium fuel, but the Audi S4 officially lists it as recommended, whereas the 2025 BMW 4 Series lists premium unleaded fuel as required for operation.