Audi S6 vs BMW M550i xDrive
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2023 BMW M550i xDrive
Overview
| Spec | Audi S6Premium | BMW M550i xDriveM550i xDrive |
|---|---|---|
| Selected trim | Premium | M550i xDrive |
| Body style | Sedan | Sedan |
| Drivetrain | all wheel drive | all wheel drive |
| Fuel type | premium unleaded (required) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 8-speed shiftable automatic |
| Engine type | mild hybrid | gas |
| Model year | 2025 | 2023 |
Pricing & market
| Spec | Audi S6Premium | BMW M550i xDriveM550i xDrive |
|---|---|---|
| MSRP | $75,900 (best) | $79,900 |
| For sale now | 0 | 0 |
Fuel economy & range
| Spec | Audi S6Premium | BMW M550i xDriveM550i xDrive |
|---|---|---|
| Combined MPG | 22 MPG (best) | 20 MPG |
| City MPG | 19 MPG (best) | 17 MPG |
| Highway MPG | 27 MPG (best) | 25 MPG |
| Fuel tank | 19.3 gal (best) | 18 gal |
Performance
| Spec | Audi S6Premium | BMW M550i xDriveM550i xDrive |
|---|---|---|
| Horsepower | 444 hp | 523 hp (best) |
| Torque | 442 lb-ft | 553 lb-ft (best) |
| Engine size | 2.9 L | 4.4 L (best) |
| Cylinders | V6 | V8 |
Size & capability
| Spec | Audi S6Premium | BMW M550i xDriveM550i xDrive |
|---|---|---|
| Seating | 5 seats | 5 seats |
| Doors | 4 | 4 |
| Cargo volume | 13.7 cu ft | 18.7 cu ft (best) |
| Payload | 1,102 lbs (best) | 855 lbs |
| Curb weight | 4,519 lbs | 4,383 lbs (best) |
| Ground clearance | — | 5.2 in (best) |
| Wheelbase | 115.3 in | 117.1 in (best) |
| Length | 195 in | 196 in (best) |
| Width | 74.3 in (best) | 73.5 in |
| Height | 56.9 in | 57.8 in (best) |
Safety & recalls
| Spec | Audi S6Premium | BMW M550i xDriveM550i xDrive |
|---|---|---|
| NHTSA overall | Not Rated | — |
| Frontal crash (driver) | Not Rated | — |
| Frontal crash (passenger) | Not Rated | — |
| Side crash (driver) | Not Rated | — |
| Side crash (passenger) | Not Rated | — |
| Side pole | Not Rated | — |
| Rollover | Not Rated | — |
| Open recalls (YMM scope) | 1 | None reported (best) |
Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.
Trim overview
All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.
| Trim | Audi S6 | BMW M550i xDrive |
|---|---|---|
| 1 | Premium $75,900 MSRP(Currently comparing) | M550i xDrive $79,900 MSRP(Currently comparing) |
| 2 | Premium Plus $80,200 MSRP | — |
| 3 | Prestige $84,100 MSRP | — |
Audi S6 vs BMW M550i xDrive FAQ
- Which is better: 2025 Audi S6 or 2023 BMW M550i xDrive?
- It depends on priorities. OpenDealer compares 2025 Audi S6 vs 2023 BMW M550i xDrive on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2025 Audi S6 or 2023 BMW M550i xDrive?
- Based on starting MSRP, the 2025 Audi S6 starts lower at $75,900.
- Which has better startingMsrp: 2025 Audi S6 or 2023 BMW M550i xDrive?
- The 2025 Audi S6 leads on startingMsrp in this comparison (75,900).
- Which has better combinedMpg: 2025 Audi S6 or 2023 BMW M550i xDrive?
- The 2025 Audi S6 leads on combinedMpg in this comparison (22).
- Which has better horsepower: 2025 Audi S6 or 2023 BMW M550i xDrive?
- The 2023 BMW M550i xDrive leads on horsepower in this comparison (523).
- How do the NHTSA safety ratings compare for 2025 Audi S6 vs 2023 BMW M550i xDrive?
- NHTSA overall crash-test ratings in this comparison: Audi S6 (Not Rated/5 NHTSA overall).