BMW iX vs Mercedes-Benz GLS450
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2026 Mercedes-Benz GLS450
Overview
| Spec | BMW iXxDrive45 | Mercedes-Benz GLS450GLS 450 4MATIC |
|---|---|---|
| Selected trim | xDrive45 | GLS 450 4MATIC |
| Body style | SUV | SUV |
| Drivetrain | all wheel drive | all wheel drive |
| Fuel type | electric | premium unleaded (required) |
| Transmission | 1-speed direct drive | 9-speed shiftable automatic |
| Engine type | electric | mild hybrid |
| Model year | 2026 | 2026 |
Pricing & market
| Spec | BMW iXxDrive45 | Mercedes-Benz GLS450GLS 450 4MATIC |
|---|---|---|
| MSRP | $75,150 (best) | $90,250 |
| Lowest listing price | $43,750 (best) | — |
| Median listing price | $49,300 (best) | — |
| Highest listing price | $83,002 (best) | — |
| For sale now | 9 (best) | 0 |
Fuel economy & range
| Spec | BMW iXxDrive45 | Mercedes-Benz GLS450GLS 450 4MATIC |
|---|---|---|
| Combined MPG | — | 21 MPG (best) |
| City MPG | — | 19 MPG (best) |
| Highway MPG | — | 24 MPG (best) |
| Combined MPGe | 94 MPGe (best) | — |
| Electric range | 312 mi (best) | — |
| 240V charge time | 10 hr (best) | — |
| Fuel tank | — | 23.8 gal (best) |
Performance
| Spec | BMW iXxDrive45 | Mercedes-Benz GLS450GLS 450 4MATIC |
|---|---|---|
| Horsepower | 402 hp (best) | 375 hp |
| Torque | 516 lb-ft (best) | 369 lb-ft |
| Engine size | — | 3 L (best) |
| Cylinders | — | I6 |
Size & capability
| Spec | BMW iXxDrive45 | Mercedes-Benz GLS450GLS 450 4MATIC |
|---|---|---|
| Seating | 5 seats | 7 seats (best) |
| Doors | 4 | 4 |
| Cargo volume | 77.9 cu ft | 84.7 cu ft (best) |
| Towing capacity | 3,500 lbs | 7,700 lbs (best) |
| Payload | 1,060 lbs (best) | — |
| Curb weight | 5,567 lbs | 5,523 lbs (best) |
| Ground clearance | 8.8 in (best) | 7.9 in |
| Wheelbase | 118.1 in | 123.4 in (best) |
| Length | 195.5 in | 205 in (best) |
| Width | 77.6 in | 79.9 in (best) |
| Height | 67.7 in | 71.8 in (best) |
Safety & recalls
| Spec | BMW iXxDrive45 | Mercedes-Benz GLS450GLS 450 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 iX | Mercedes-Benz GLS450 |
|---|---|---|
| 1 | xDrive45 $75,150 MSRP(Currently comparing) | GLS 450 4MATIC $90,250 MSRP(Currently comparing) |
| 2 | xDrive60 $88,500 MSRP | — |
| 3 | M70 $111,500 MSRP | — |
Live inventory
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BMW iX vs Mercedes-Benz GLS450 FAQ
- Which is better: 2026 BMW iX or 2026 Mercedes-Benz GLS450?
- It depends on priorities. OpenDealer compares 2026 BMW iX vs 2026 Mercedes-Benz GLS450 on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2026 BMW iX or 2026 Mercedes-Benz GLS450?
- Based on starting MSRP, the 2026 BMW iX starts lower at $75,150. Live BMW iX listings start at $43,750.
- Which has better startingMsrp: 2026 BMW iX or 2026 Mercedes-Benz GLS450?
- The 2026 BMW iX leads on startingMsrp in this comparison (75,150).
- Which has better combinedMpg: 2026 BMW iX or 2026 Mercedes-Benz GLS450?
- The 2026 Mercedes-Benz GLS450 leads on combinedMpg in this comparison (21).
- Which has better electricRangeMi: 2026 BMW iX or 2026 Mercedes-Benz GLS450?
- The 2026 BMW iX leads on electricRangeMi in this comparison (364).
- Which has better horsepower: 2026 BMW iX or 2026 Mercedes-Benz GLS450?
- The 2026 BMW iX leads on horsepower in this comparison (650).
- Which has better seats: 2026 BMW iX or 2026 Mercedes-Benz GLS450?
- The 2026 Mercedes-Benz GLS450 leads on seats in this comparison (7).
- Which has better maxTowingLbs: 2026 BMW iX or 2026 Mercedes-Benz GLS450?
- The 2026 Mercedes-Benz GLS450 leads on maxTowingLbs in this comparison (7,700).