2025 BMW M5 vs 2026 Audi A8
Comparison Overview
The most significant divergence between the 2025 BMW M5 and the 2026 Audi A8 is power output, where the M5 delivers a staggering 717 hp, drastically outpacing the A8's 335 hp. This power differential is reflected in the cost, with the M5 commanding an MSRP of $119,500 compared to the A8's $95,100, a $24,400 gap. Fuel economy is another major separation point; the A8 achieves 22 MPG combined while the M5 manages only 14 MPG combined. Furthermore, the M5 boasts 738 lb-ft of torque versus the A8's 369 lb-ft. The M5 also offers a modest 27 miles of electric range, a feature absent from the standard A8 specification provided. The A8 compensates with superior efficiency and dimensions, being nearly 1 inch longer at 209.5 inches and offering a larger 19/27 MPG city/highway rating.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2026 Audi A8
The 2026 Audi A8 is the superior commuter due to its significantly better combined fuel economy of 22 MPG versus the M5's 14 MPG.
2026 Audi A8
The Audi A8 wins for families by offering greater overall length (209.5 inches) and slightly better practical cargo volume at 12.5 cu ft compared to the M5's 16.5 cu ft, though its length favors overall passenger space.
2025 BMW M5
The 2025 BMW M5 is the choice for enthusiasts, offering substantially more output with 717 hp and 738 lb-ft of torque.
2026 Audi A8
The Audi A8 provides significantly lower cost of entry at $95,100 for 335 hp, presenting a superior performance-per-dollar metric over the M5.
Choose the BMW M5 if...
- Your primary requirement is absolute, track-ready acceleration, utilizing its 717 hp output.
- You prioritize performance torque figures, commanding 738 lb-ft compared to the A8's 369 lb-ft.
- You seek the benefit of a 27-mile plug-in electric driving capability.
Choose the Audi A8 if...
- Your budget is constrained, requiring the $24,400 savings compared to the M5's MSRP.
- Maximum fuel efficiency is key, targeting 22 MPG combined over the M5's 14 MPG.
- You desire the larger sedan footprint, evident in the A8's 209.5-inch length.
Key Dimensions
| Dimension | BMW M5 | Audi A8 |
|---|---|---|
| Length | 200.6" | 209.5" |
| Width | 77.6" | 76.6" |
| Height | 59.4" | 58.3" |
| Wheelbase | 118.3" | 123.1" |
Features Comparison
Safety
| Feature | BMW | Audi |
|---|---|---|
| Blind Spot Monitor | ✓ | — |
| Lane Departure Warning | ✓ | ✓ |
| Lane Keeping Assist System | ✓ | — |
| Rear Cross Traffic Alert | ✓ | — |
| Driver Attention Alert | ✓ | — |
| 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 |
| Brake Drying | ✓ | — |
| Front Ventilated Disc Brakes | ✓ | ✓ |
| Rear Ventilated Disc Brakes | ✓ | ✓ |
| Brake Preparation System | ✓ | ✓ |
| Brake Assist | ✓ | ✓ |
| Tire Pressure Monitoring System | ✓ | ✓ |
| Automatic Headlights | ✓ | ✓ |
| Headlight Delay-Off | ✓ | ✓ |
| LED Headlights | ✓ | ✓ |
| Adaptive Headlights | ✓ | — |
| Self-Leveling Headlights | ✓ | ✓ |
| Daytime Running Lights | ✓ | ✓ |
| Cornering Lights | ✓ | ✓ |
| Integrated Turn Signal Mirrors | ✓ | ✓ |
| Front Headrests | 2 | 2 |
| Front Fixed Headrests | ✓ | — |
| Rear Headrests | 3 | 3 |
| Rear Height Adjustable Headrests | ✓ | ✓ |
| Rear Center 3-Point Seatbelt | ✓ | ✓ |
| Anti-Theft Alarm System (Remote) | ✓ | ✓ |
| Dual Rear Side-Mounted Airbags | — | ✓ |
| Front Fog Lights | — | ✓ |
| Front Multi-Adjustable Headrests | — | ✓ |
| Engine Immobilizer | — | ✓ |
Engine
| Feature | BMW | Audi |
|---|---|---|
| Base Engine Displacement | 4.4 L | 3.0 L |
| Number of Cylinders | V8 | V6 |
| Base Engine Type | plug-in hybrid | mild hybrid |
| Horsepower | 717 hp @ 5600 rpm | 335 hp |
| Torque | 738 lb-ft @ 1800 rpm | 369 lb-ft |
| Number of Valves | 32 | 24 |
| Camshaft Type | Double overhead cam (DOHC) | Double overhead cam (DOHC) |
| Variable Valve Timing | Variable | Variable |
| Fuel Injection Type | ✓ | ✓ |
Drive Train
| Feature | BMW | Audi |
|---|---|---|
| Transmission Type | 8-speed shiftable automatic | 8-speed shiftable automatic |
| Drivetrain Type | all wheel drive | all wheel drive |
| [object Object] | ✓ | — |
| [object Object] | ✓ | — |
| Center Differential Type | — | Limited Slip |
| Hill Descent Control | — | ✓ |
Fuel
| Feature | BMW | Audi |
|---|---|---|
| Fuel Type | premium unleaded (required) | premium unleaded (required) |
| EPA Fuel Economy (City/Highway) | 12/17 MPG | 19/27 MPG |
| EPA Fuel Economy (Combined) | 14 MPG | 22 MPG |
| EPA Driving Range (City/Highway) | 190.8/270.3 mi. | 412.3/585.9 mi. |
| EPA Efficiency (City/Highway MPGe) | 45/57 MPGe | — |
| EPA Efficiency (Combined MPGe) | 50 MPGe | — |
| EPA Electric Driving Range | 27 mi. | — |
| EPA Energy Consumption (kWh/100 mi) | 59 | — |
| Charging Time (240V) | 4.0 hr. | — |
| Fuel Tank Capacity | 15.9 gal. | 21.7 gal. |
| DC Fast Charging Port Type | SAE J1772 | — |
Comfort & Convenience
| Feature | BMW | Audi |
|---|---|---|
| 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 | ✓ | ✓ |
| Wireless Charging Pad | ✓ | ✓ |
| Cruise Control | ✓ | ✓ |
| Universal Remote Transmitter | ✓ | ✓ |
| Front Cupholders | ✓ | ✓ |
| Rear Cupholders | ✓ | ✓ |
| Front Door Pockets | ✓ | ✓ |
| Rear Door Pockets | ✓ | ✓ |
| Leather Steering Wheel | ✓ | ✓ |
| Heated Steering Wheel | ✓ | ✓ |
| Four Zone Climate Control | ✓ | ✓ |
| Rear Ventilation Ducts | ✓ | — |
| Interior Air Filtration | ✓ | ✓ |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | ✓ |
| Turn Signal Indicators in Mirrors | ✓ | ✓ |
| Front View Camera | — | ✓ |
| Side View Camera | — | ✓ |
| Front Seatback Storage | — | ✓ |
| Rear Ventilation Ducts with Fan Control | — | ✓ |
| Extended Cabin Heating | — | ✓ |
In Car Entertainment
| Feature | BMW | Audi |
|---|---|---|
| Infotainment Display | 14.9 in | 10.1 in |
| AM/FM Stereo | ✓ | ✓ |
| Premium Speaker Brand | Bowers & Wilkins | — |
| Stereo Power | 655W | 730W |
| Speaker System | 18 | 17 |
| Surround Audio | Discrete | Discrete |
| Android Auto (Wired) | ✓ | — |
| Apple CarPlay (Wired) | ✓ | — |
| USB Port | ✓ | ✓ |
| USB Port with External Media Control | ✓ | ✓ |
| Satellite Radio | ✓ | ✓ |
| Satellite Radio Trial Period | 12 months | 3 months |
| Premium Brand Speakers | — | Bang & Olufsen |
| Android Auto (Wireless) | — | ✓ |
| Apple CarPlay (Wireless) | — | ✓ |
| Speed Sensitive Volume Control | — | ✓ |
Power Feature
| Feature | BMW | Audi |
|---|---|---|
| One-Touch Power Windows | 4 | 4 |
| Moonroof Type | 1st Row Fixed Glass Extended | 1st Row Power Glass |
| Keyless Entry | ✓ | ✓ |
| Reverse Tilt Passenger Mirror | ✓ | ✓ |
| Heated Mirrors | ✓ | ✓ |
Frontseats
| Feature | BMW | Audi |
|---|---|---|
| Front Head Room | 39.0 in. | 38.3 in. |
| Front Leg Room | 41.3 in. | 41.5 in. |
| Front Shoulder Room | 59.2 in. | 59.1 in. |
| Seat Material: Premium Leather | ✓ | — |
| Front Seat Type: Sport | ✓ | — |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Lumbar Support | Power | Power |
| Driver Seat Memory Settings | 2 | 2 |
| Passenger Seat Height Adjustment | ✓ | ✓ |
| Passenger Seat Lumbar Support | Power | Power |
| Driver Seat Heating | Multi-level | Multi-level |
| Passenger Seat Heating | Multi-level | Multi-level |
| Seat Material: Leather | — | ✓ |
| Front Seat Type: Bucket | — | ✓ |
| Driver Seat Power Adjustments | — | 18-way |
| Passenger Seat Power Adjustments | — | 18-way |
| Passenger Seat Memory Settings | — | 2 |
| Driver Seat Ventilation | — | ✓ |
| Passenger Seat Ventilation | — | ✓ |
Rearseats
| Feature | BMW | Audi |
|---|---|---|
| Rear Head Room | 37.5 in. | 38.5 in. |
| Rear Leg Room | 36.2 in. | 44.3 in. |
| Rear Shoulder Room | 56.9 in. | 57.6 in. |
| Split-Folding Rear Seatback | ✓ | ✓ |
| Folding Center Armrest | ✓ | — |
| Folding Rear Seat Feature | — | ✓ |
| Pass-Thru Center Armrest | — | ✓ |
Tires and Wheels
| Feature | BMW | Audi |
|---|---|---|
| Wheel Finish | Painted Alloy | Painted Alloy |
| Wheel Size | 21 x 11.0 in. | — |
| Tire Type | Performance | All Season |
| Tire Size | 295/35R21 | 265/40R20 |
| Wheel Diameter | — | 20 in. |
| Spare Tire Type | — | Temporary |
| Spare Tire Location | — | Inside Mounted |
Suspension
| Feature | BMW | Audi |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | — | ✓ |
| Rear Stabilizer Bar | — | ✓ |
Warranty
| Feature | BMW | Audi |
|---|---|---|
| Basic Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| Drivetrain Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| EV Battery Warranty | 8 yr./ 100000 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. | 3 yr./ 30000 mi. |
Frequently Asked Questions
Common questions about comparing the 2025 BMW M5 and 2026 Audi A8.
What is the functional difference between the 27 miles of electric range on the M5 and the A8?
The 2025 BMW M5 offers a plug-in hybrid configuration, providing an EPA-estimated 27 miles of electric-only driving. The provided specifications for the 2026 Audi A8 do not list an electric range, suggesting it operates solely on its gasoline powertrain.
How significant is the difference in performance despite both being AWD sedans?
The performance gap is vast; the M5 delivers 717 hp and 738 lb-ft of torque, which is 382 hp more than the A8's 335 hp. This indicates the M5 is designed for high-speed, high-performance driving, whereas the A8 emphasizes balanced, luxurious power delivery.
Is the Audi A8's lower MSRP a reflection of less overall size?
No, the A8 is dimensionally larger in length, measuring 209.5 inches compared to the M5's 200.6 inches. However, the M5 is marginally wider at 77.6 inches versus the A8's 76.6 inches.
How much more fuel will the BMW M5 consume annually based on stated MPG?
The A8’s 22 MPG combined efficiency offers an 8 MPG advantage over the M5’s 14 MPG. For the average driver, this difference translates to significantly higher fuel costs when operating the M5, which requires premium fuel.
Does the M5's significantly higher price justify its equipment over the A8?
The $119,500 MSRP for the M5 is justified primarily by its extreme performance hardware (717 hp) and the inclusion of a plug-in hybrid system. The A8 offers better standard utility and efficiency for $95,100.
How do the cargo capacities compare for daily utility?
The BMW M5 provides 16.5 cubic feet of cargo volume, marginally exceeding the Audi A8's 12.5 cubic feet. While the M5 has more cubic feet, the A8 is a longer vehicle overall, suggesting cargo accessibility might differ.
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