BMW X6 vs Mercedes-Benz GLS580
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2026 Mercedes-Benz GLS580
Overview
| Spec | BMW X6xDrive40i | Mercedes-Benz GLS580GLS 580 4MATIC |
|---|---|---|
| Selected trim | xDrive40i | GLS 580 4MATIC |
| Body style | SUV | SUV |
| Drivetrain | all wheel drive | all wheel drive |
| Fuel type | premium unleaded (required) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 9-speed shiftable automatic |
| Engine type | mild hybrid | mild hybrid |
| Model year | 2027 | 2026 |
Pricing & market
| Spec | BMW X6xDrive40i | Mercedes-Benz GLS580GLS 580 4MATIC |
|---|---|---|
| MSRP | $77,300 (best) | $116,150 |
| Lowest listing price | $15,029 (best) | — |
| Median listing price | $63,993 (best) | — |
| Highest listing price | $113,772 (best) | — |
| For sale now | 16 (best) | 0 |
Fuel economy & range
| Spec | BMW X6xDrive40i | Mercedes-Benz GLS580GLS 580 4MATIC |
|---|---|---|
| Combined MPG | 23 MPG (best) | 16 MPG |
| City MPG | 22 MPG (best) | 14 MPG |
| Highway MPG | 26 MPG (best) | 20 MPG |
| Fuel tank | 21.9 gal | 23.8 gal (best) |
Performance
| Spec | BMW X6xDrive40i | Mercedes-Benz GLS580GLS 580 4MATIC |
|---|---|---|
| Horsepower | 375 hp | 510 hp (best) |
| Torque | 398 lb-ft | 538 lb-ft (best) |
| Engine size | 3 L | 4 L (best) |
| Cylinders | I6 | V8 |
Size & capability
| Spec | BMW X6xDrive40i | Mercedes-Benz GLS580GLS 580 4MATIC |
|---|---|---|
| Seating | 5 seats | 7 seats (best) |
| Doors | 4 | 4 |
| Cargo volume | 59.6 cu ft | 84.7 cu ft (best) |
| Towing capacity | 7,209 lbs | 7,700 lbs (best) |
| Payload | 1,082 lbs (best) | — |
| Curb weight | 5,002 lbs (best) | 5,842 lbs |
| Ground clearance | 8.1 in (best) | 7.9 in |
| Wheelbase | 117.1 in | 123.4 in (best) |
| Length | 195 in | 205.2 in (best) |
| Width | 78.9 in | 79.9 in (best) |
| Height | 66.5 in | 71.8 in (best) |
Safety & recalls
| Spec | BMW X6xDrive40i | Mercedes-Benz GLS580GLS 580 4MATIC |
|---|---|---|
| Open recalls (YMM scope) | None reported | None reported |
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 | BMW X6 | Mercedes-Benz GLS580 |
|---|---|---|
| 1 | xDrive40i $77,300 MSRP(Currently comparing) | GLS 580 4MATIC $116,150 MSRP(Currently comparing) |
| 2 | M60i $98,000 MSRP | — |
| 3 | Competition $136,100 MSRP | — |
Live inventory
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BMW X6 vs Mercedes-Benz GLS580 FAQ
- Which is better: 2027 BMW X6 or 2026 Mercedes-Benz GLS580?
- It depends on priorities. OpenDealer compares 2027 BMW X6 vs 2026 Mercedes-Benz GLS580 on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2027 BMW X6 or 2026 Mercedes-Benz GLS580?
- Based on starting MSRP, the 2027 BMW X6 starts lower at $77,300. Live BMW X6 listings start at $15,029.
- Which has better startingMsrp: 2027 BMW X6 or 2026 Mercedes-Benz GLS580?
- The 2027 BMW X6 leads on startingMsrp in this comparison (77,300).
- Which has better combinedMpg: 2027 BMW X6 or 2026 Mercedes-Benz GLS580?
- The 2027 BMW X6 leads on combinedMpg in this comparison (23).
- Which has better horsepower: 2027 BMW X6 or 2026 Mercedes-Benz GLS580?
- The 2027 BMW X6 leads on horsepower in this comparison (617).
- Which has better seats: 2027 BMW X6 or 2026 Mercedes-Benz GLS580?
- The 2026 Mercedes-Benz GLS580 leads on seats in this comparison (7).
- Which has better maxTowingLbs: 2027 BMW X6 or 2026 Mercedes-Benz GLS580?
- The 2026 Mercedes-Benz GLS580 leads on maxTowingLbs in this comparison (7,700).