2025 Audi S6 vs 2026 BMW 5 Series
Comparison Overview
Choosing between the 2025 Audi S6 and the 2026 BMW 5 Series boils down to whether you prioritize outright performance or long-term, everyday savings. The Audi S6 commands a premium entry price of $75,900, which is $16,000 more than the $59,900 starting price of the BMW. However, the S6 delivers significant power, boasting 444 hp and 442 lb-ft of torque compared to the BMW's 255 hp. This power comes at a fuel economy cost: the Audi achieves a combined 22 MPG, whereas the BMW, despite needing only recommended premium fuel, offers better efficiency. Furthermore, practical considerations lean toward the BMW; it offers a considerably larger trunk with 18.4 cu ft versus the S6’s 13.7 cu ft, making the 5 Series surprisingly better suited for hauling family gear despite its lower power output.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2026 BMW 5 Series
The 2026 BMW 5 Series wins for commuters due to its lower initial cost and better expected fuel efficiency.
2026 BMW 5 Series
The BMW 5 Series offers substantially more utility with 18.4 cu ft of cargo space compared to the Audi S6's 13.7 cu ft.
2025 Audi S6
The 2025 Audi S6 is the enthusiast choice, offering a massive 189 hp advantage over the BMW.
2026 BMW 5 Series
With a $16,000 lower MSRP and better MPG, the BMW provides significantly better value.
Choose the Audi S6 if...
- You need the traction assurance of standard All-Wheel Drive for inclement weather handling.
- You absolutely demand high-output performance, enjoying the 444 hp available.
- You prefer the more compact overall footprint, with the S6 measuring 195.0 inches long.
Choose the BMW 5 Series if...
- Keeping the initial purchase price down is crucial, saving $16,000 over the Audi.
- Maximizing cargo space is necessary, as the BMW provides 18.4 cu ft versus 13.7 cu ft.
- You drive long highway stretches and prefer recommended premium fuel over the S6's required premium.
Key Dimensions
| Dimension | Audi S6 | BMW 5 Series |
|---|---|---|
| Length | 195.0" | 199.2" |
| Width | 74.3" | 74.8" |
| Height | 56.9" | 59.6" |
| Wheelbase | 115.3" | 117.9" |
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 | 3 |
| 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 | — | ✓ |
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 | Limited Slip |
Fuel
| Feature | Audi | BMW |
|---|---|---|
| Fuel Type | premium unleaded (required) | premium unleaded (recommended) |
| EPA Fuel Economy (City/Highway) | 19/27 MPG | — |
| EPA Fuel Economy (Combined) | 22 MPG | — |
| EPA Driving Range (City/Highway) | 366.7/521.1 mi. | 0/0 mi. |
| Fuel Tank Capacity | 19.3 gal. | 15.9 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 | ✓ | ✓ |
| 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 | 12 |
| 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 |
| Android Auto (Wired) | — | ✓ |
| Apple CarPlay (Wired) | — | ✓ |
| Speed Sensitive Volume Control | — | ✓ |
Power Feature
| Feature | Audi | BMW |
|---|---|---|
| One-Touch Power Windows | 4 | 4 |
| Moonroof Type | 1st Row Power Glass Extended | 1st Row Power Glass |
| Keyless Entry | ✓ | ✓ |
| Heated Mirrors | ✓ | ✓ |
| Reverse Tilt Passenger Mirror | — | ✓ |
Frontseats
| Feature | Audi | BMW |
|---|---|---|
| Front Head Room | 38.0 in. | 38.8 in. |
| Front Leg Room | 41.3 in. | 41.3 in. |
| Front Shoulder Room | 57.8 in. | 59.2 in. |
| Seat Material: Leather | ✓ | — |
| Front Seat Type: Sport | ✓ | ✓ |
| Driver Seat Power Adjustments | 8-way | 8-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 | 8-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: Leatherette | — | ✓ |
| Driver Seat Manual Adjustments | — | 2-way |
| Passenger Seat Manual Adjustments | — | 2-way |
Rearseats
| Feature | Audi | BMW |
|---|---|---|
| Rear Head Room | 38.1 in. | 37.5 in. |
| Rear Leg Room | 37.4 in. | 37.0 in. |
| Rear Shoulder Room | 56.5 in. | 56.9 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 | 19 x 8.5 in |
| Tire Type | Performance | All Season |
| Tire Size | 255/35R21 | 245/45R19 |
| 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 2026 BMW 5 Series.
How does the handling difference between the RWD BMW and AWD Audi affect daily driving?
The Audi S6 uses all-wheel drive (AWD), which generally offers superior grip and stability, especially in slippery conditions. The BMW 5 Series uses rear-wheel drive (RWD), which enthusiasts often prefer for better steering feel and balanced dynamics, though it might require more caution in snow or heavy rain.
Is the Audi S6’s required premium fuel a big annual expense compared to the BMW?
Since the Audi S6 requires premium unleaded and has lower efficiency (22 combined MPG), while the BMW 5 Series only recommends it, the Audi will incur higher running costs for fuel, especially given the $16,000 difference in initial purchase price.
Which car is physically bigger and how does that impact parking?
The 2026 BMW 5 Series is slightly larger overall, measuring 199.2 inches long and 74.8 inches wide. The Audi S6 is marginally smaller at 195.0 inches long and 74.3 inches wide, which might offer a minor advantage in tighter urban parking situations.
What kind of power gap separates these two sedans?
The performance gap is substantial; the Audi S6 produces 444 hp and 442 lb-ft of torque. The BMW 5 Series trails significantly with 255 hp and 295 lb-ft of torque, meaning the Audi is considerably quicker.
If I frequently haul luggage, which trunk offers more room?
The 2026 BMW 5 Series is the clear winner for storage, offering a cavernous 18.4 cubic feet of cargo capacity. The 2025 Audi S6 has notably less room at only 13.7 cubic feet.
Are either of these cars likely to be efficient commuters?
While neither is a fuel sipper, the BMW 5 Series is better equipped for commuting due to its lower potential operating costs and significantly lower MSRP compared to the high-performance Audi S6.
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