2025 Audi S8 vs 2025 BMW M8
Comparison Overview
Deciding between the 2025 Audi S8 and the 2025 BMW M8 often boils down to prioritizing plush, spacious luxury over raw, coupe-focused performance. The S8, at $125,300, offers a more accessible entry point than the M8's $138,800 sticker price, a clear $13,500 saving. While the M8 boasts a higher 617 hp output compared to the S8's 563 hp, the S8 counters with superior torque at 590 lb-ft versus the BMW's 553 lb-ft, making the Audi feel effortlessly quick off the line. The S8 also leans into sedan practicality with its larger 209.5-inch length and slightly better 18 combined MPG versus the M8's 17. However, the M8’s coupe format nets a marginally larger 14.8 cu ft of cargo space compared to the S8's 12.5 cu ft, an interesting quirk for a two-door.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2025 Audi S8
The 2025 Audi S8 is the better commuter due to its full-size sedan body style, offering better practicality and interior space for daily driving.
2025 Audi S8
As a sedan, the Audi S8 easily accommodates four adults comfortably across its 209.5-inch length, unlike the tighter quarters of the M8 coupe.
2025 BMW M8
The 2025 BMW M8 appeals more to the pure enthusiast by packing 617 hp, giving it a clear edge in peak horsepower output over the S8.
2025 Audi S8
The Audi S8 offers substantial performance, coming in $13,500 less expensive while delivering a compelling 590 lb-ft of torque.
Choose the Audi S8 if...
- You require the significant torque advantage of 590 lb-ft for effortless merging.
- You want to save $13,500 upfront compared to the M8's MSRP.
- Daily usability matters most, favoring the easier ingress/egress of a four-door sedan.
Choose the BMW M8 if...
- Maximum straight-line power is the top priority, leveraging its 617 hp.
- You prefer the sleeker, sportier aesthetic and lower stance (53.6 inches high) of a coupe.
- You value the slightly larger trunk capacity of 14.8 cu ft for weekend gear.
Key Dimensions
| Dimension | Audi S8 | BMW M8 |
|---|---|---|
| Length | 209.5" | 191.8" |
| Width | 76.6" | 74.9" |
| Height | 58.5" | 53.6" |
| Wheelbase | 123.2" | 111.3" |
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 Preparation System | ✓ | ✓ |
| Brake Assist | ✓ | ✓ |
| Tire Pressure Monitoring System | ✓ | ✓ |
| Automatic Headlights | ✓ | ✓ |
| Headlight Delay-Off | ✓ | — |
| LED Headlights | ✓ | ✓ |
| Self-Leveling Headlights | ✓ | ✓ |
| Daytime Running Lights | ✓ | ✓ |
| Cornering Lights | ✓ | — |
| Headlight Washers | ✓ | — |
| Front Fog Lights | ✓ | — |
| Integrated Turn Signal Mirrors | ✓ | ✓ |
| Front Headrests | 2 | 2 |
| Front Height Adjustable Headrests | ✓ | — |
| Rear Headrests | 3 | 2 |
| Rear Height Adjustable Headrests | ✓ | — |
| Rear Center 3-Point Seatbelt | ✓ | — |
| Anti-Theft Alarm System (Remote) | ✓ | ✓ |
| Engine Immobilizer | ✓ | ✓ |
| Driver Attention Alert | — | ✓ |
| Brake Drying | — | ✓ |
| Adaptive Headlights | — | ✓ |
| Front Fixed Headrests | — | ✓ |
| Rear Integrated Headrests | — | ✓ |
Engine
| Feature | Audi | BMW |
|---|---|---|
| Base Engine Displacement | 4.0 L | 4.4 L |
| Number of Cylinders | V8 | V8 |
| Base Engine Type | mild hybrid | gas |
| Horsepower | 563 hp | 617 hp @ 6000 rpm |
| Torque | 590 lb-ft | 553 lb-ft @ 1800 rpm |
| Number of Valves | 32 | 32 |
| Camshaft Type | Double overhead cam (DOHC) | Double overhead cam (DOHC) |
| Variable Valve Timing | Variable | Variable |
| Fuel Injection Type | ✓ | ✓ |
| Cylinder Deactivation | ✓ | — |
Drive Train
| Feature | Audi | BMW |
|---|---|---|
| Transmission Type | 8-speed shiftable automatic | 8-speed shiftable automatic |
| Drivetrain Type | all wheel drive | all wheel drive |
| [object Object] | ✓ | — |
| [object Object] | ✓ | — |
| [object Object] | — | ✓ |
| [object Object] | — | ✓ |
Fuel
| Feature | Audi | BMW |
|---|---|---|
| Fuel Type | premium unleaded (required) | premium unleaded (required) |
| EPA Fuel Economy (City/Highway) | 15/24 MPG | 15/22 MPG |
| EPA Fuel Economy (Combined) | 18 MPG | 17 MPG |
| EPA Driving Range (City/Highway) | 325.5/520.8 mi. | 301.5/442.2 mi. |
| Fuel Tank Capacity | 21.7 gal. | 20.1 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 | ✓ | ✓ |
| Front View Camera | ✓ | — |
| Side View Camera | ✓ | — |
| 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 | ✓ | — |
| Front Seatback Storage | ✓ | ✓ |
| Leather Steering Wheel | ✓ | ✓ |
| Heated Steering Wheel | ✓ | ✓ |
| Four Zone Climate Control | ✓ | — |
| Rear Ventilation Ducts with Fan Control | ✓ | — |
| Interior Air Filtration | ✓ | ✓ |
| Extended Cabin Heating | ✓ | — |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | ✓ |
| Turn Signal Indicators in Mirrors | ✓ | ✓ |
| Cooled Storage Compartment | ✓ | — |
| Cruise Control on Steering Wheel | — | ✓ |
| Dual Zone Climate Control | — | ✓ |
| Extended Cabin Heating/Cooling | — | ✓ |
In Car Entertainment
| Feature | Audi | BMW |
|---|---|---|
| Infotainment Display | 10.1 in | 12.3 in |
| AM/FM Stereo | ✓ | ✓ |
| Premium Brand Speakers | Bang & Olufsen | — |
| Stereo Power | 730W | 464W |
| Speaker System | 17 | 16 |
| Surround Audio | Discrete | Discrete |
| 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 | ✓ | — |
| Premium Speaker Brand | — | Harman/Kardon |
| Android Auto (Wired) | — | ✓ |
| Apple CarPlay (Wired) | — | ✓ |
| Auxiliary Audio Input | — | ✓ |
Power Feature
| Feature | Audi | BMW |
|---|---|---|
| One-Touch Power Windows | 4 | 2 |
| Moonroof Type | 1st Row Power Glass | — |
| Keyless Entry | ✓ | ✓ |
| Reverse Tilt Passenger Mirror | ✓ | ✓ |
| Heated Mirrors | ✓ | ✓ |
Frontseats
| Feature | Audi | BMW |
|---|---|---|
| Front Head Room | 38.3 in. | 38.9 in. |
| Front Leg Room | 41.5 in. | 42.1 in. |
| Front Shoulder Room | 59.1 in. | 57.2 in. |
| Seat Material: Premium Leather | ✓ | ✓ |
| Front Seat Type: Sport | ✓ | ✓ |
| Driver Seat Power Adjustments | 18-way | 12-way |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Lumbar Support | Power | Power |
| Driver Seat Memory Settings | 2 | 2 |
| Passenger Seat Power Adjustments | 18-way | — |
| Passenger Seat Height Adjustment | ✓ | ✓ |
| Passenger Seat Lumbar Support | Power | Power |
| Driver Seat Heating | Multi-level | Multi-level |
| Passenger Seat Heating | Multi-level | Multi-level |
| Driver Seat Ventilation | ✓ | ✓ |
| Passenger Seat Ventilation | ✓ | ✓ |
| Seat Massage Function | ✓ | — |
| Driver Seat Thigh Extension | — | ✓ |
| Passenger Seat Thigh Extension | — | ✓ |
| Passenger Seat Memory Settings | — | 2 |
Rearseats
| Feature | Audi | BMW |
|---|---|---|
| Rear Head Room | 38.5 in. | 33.6 in. |
| Rear Leg Room | 44.3 in. | 29.5 in. |
| Rear Shoulder Room | 57.6 in. | 46.9 in. |
| Split-Folding Rear Seatback | ✓ | ✓ |
| Folding Rear Seat Feature | ✓ | — |
| Pass-Thru Center Armrest | ✓ | — |
Tires and Wheels
| Feature | Audi | BMW |
|---|---|---|
| Wheel Material | Alloy | — |
| Wheel Size | 21 in | 20 x 10.5 in. |
| Tire Type | Performance | Performance |
| Tire Size | 265/35R21 | 285/35R20 |
| 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 S8 and 2025 BMW M8.
Does the M8's higher horsepower make it significantly faster than the S8?
While the BMW M8 has 617 hp compared to the Audi S8's 563 hp, the S8 fights back with much higher torque (590 lb-ft vs. 553 lb-ft), meaning their real-world acceleration might feel quite similar, especially at lower speeds.
Which car is the better choice for covering long distances comfortably?
The Audi S8 is likely the superior long-distance cruiser because it is a larger sedan (209.5 inches long) and typically offers a plusher ride quality than the lower-slung, sport-focused BMW M8 coupe.
How much more fuel-efficient is the Audi S8 compared to the BMW M8?
The Audi S8 holds a slight advantage in efficiency, achieving 18 combined MPG compared to the BMW M8's 17 combined MPG, though both demand premium fuel.
Is the M8's coupe configuration noticeably smaller inside for passengers?
Yes, since the M8 is a coupe with a lower height of 53.6 inches, rear-seat access and general headroom will be significantly more restricted compared to the spacious four-door S8 sedan.
What is the direct price difference between these two performance machines?
The 2025 BMW M8 commands a premium of $13,500 over the 2025 Audi S8; the BMW starts at $138,800 while the Audi begins at $125,300.
Do both vehicles offer similar drivetrains?
Yes, both high-performance models come standard with all-wheel drive and utilize an 8-speed shiftable automatic transmission for power delivery.
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