Mercedes-Benz GLS580 vs Porsche Cayenne
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2026 Porsche Cayenne
Overview
| Spec | Mercedes-Benz GLS580GLS 580 4MATIC | Porsche CayenneBase |
|---|---|---|
| Selected trim | GLS 580 4MATIC | Base |
| Body style | SUV | SUV |
| Drivetrain | all wheel drive | all wheel drive |
| Fuel type | premium unleaded (required) | premium unleaded (required) |
| Transmission | 9-speed shiftable automatic | 8-speed shiftable automatic |
| Engine type | mild hybrid | gas |
| Model year | 2026 | 2026 |
Pricing & market
| Spec | Mercedes-Benz GLS580GLS 580 4MATIC | Porsche CayenneBase |
|---|---|---|
| MSRP | $116,150 | $89,900 (best) |
| Lowest listing price | — | $23,421 (best) |
| Median listing price | — | $100,411 (best) |
| Highest listing price | — | $154,522 (best) |
| For sale now | 0 | 50 (best) |
Fuel economy & range
| Spec | Mercedes-Benz GLS580GLS 580 4MATIC | Porsche CayenneBase |
|---|---|---|
| Combined MPG | 16 MPG | 19 MPG (best) |
| City MPG | 14 MPG | 17 MPG (best) |
| Highway MPG | 20 MPG | 23 MPG (best) |
| Fuel tank | 23.8 gal (best) | 23.7 gal |
Performance
| Spec | Mercedes-Benz GLS580GLS 580 4MATIC | Porsche CayenneBase |
|---|---|---|
| Horsepower | 510 hp (best) | 348 hp |
| Torque | 538 lb-ft (best) | 368 lb-ft |
| Engine size | 4 L (best) | 3 L |
| Cylinders | V8 | V6 |
Size & capability
| Spec | Mercedes-Benz GLS580GLS 580 4MATIC | Porsche CayenneBase |
|---|---|---|
| Seating | 7 seats (best) | 5 seats |
| Doors | 4 | 4 |
| Cargo volume | 84.7 cu ft (best) | 60.3 cu ft |
| Towing capacity | 7,700 lbs | 7,716 lbs (best) |
| Payload | — | 1,572 lbs (best) |
| Curb weight | 5,842 lbs | 4,678 lbs (best) |
| Ground clearance | 7.9 in (best) | — |
| Wheelbase | 123.4 in (best) | 114 in |
| Length | 205.2 in (best) | 194.1 in |
| Width | 79.9 in (best) | 78.1 in |
| Height | 71.8 in (best) | 66.9 in |
Safety & recalls
| Spec | Mercedes-Benz GLS580GLS 580 4MATIC | Porsche CayenneBase |
|---|---|---|
| Open recalls (YMM scope) | None reported (best) | 1 |
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 | Mercedes-Benz GLS580 | Porsche Cayenne |
|---|---|---|
| 1 | GLS 580 4MATIC $116,150 MSRP(Currently comparing) | Base $89,900 MSRP(Currently comparing) |
| 2 | — | Coupe $95,100 MSRP |
| 3 | — | E-Hybrid $103,100 MSRP |
| 4 | — | E-Hybrid Coupe $107,300 MSRP |
| 5 | — | S $108,300 MSRP |
| 6 | — | Electric $109,000 MSRP |
| 7 | — | S E-Hybrid $111,600 MSRP |
| 8 | — | Electric $113,800 MSRP |
| 9 | — | S Coupe $114,900 MSRP |
| 10 | — | S E-Hybrid Coupe $117,100 MSRP |
| 11 | — | S Electric $126,300 MSRP |
| 12 | — | S Electric $131,200 MSRP |
| 13 | — | GTS $132,400 MSRP |
| 14 | — | GTS Coupe $137,100 MSRP |
| 15 | — | Turbo Electric $163,000 MSRP |
| 16 | — | Turbo Electric $168,000 MSRP |
| 17 | — | Turbo E-Hybrid $164,500 MSRP |
| 18 | — | Turbo E-Hybrid Coupe $169,100 MSRP |
| 19 | — | Turbo GT Coupe $214,800 MSRP |
Live inventory
Porsche Cayenne50 for sale
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Mercedes-Benz GLS580 vs Porsche Cayenne FAQ
- Which is better: 2026 Mercedes-Benz GLS580 or 2026 Porsche Cayenne?
- It depends on priorities. OpenDealer compares 2026 Mercedes-Benz GLS580 vs 2026 Porsche Cayenne on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2026 Mercedes-Benz GLS580 or 2026 Porsche Cayenne?
- Based on starting MSRP, the 2026 Porsche Cayenne starts lower at $89,900. Live Porsche Cayenne listings start at $23,421.
- Which has better startingMsrp: 2026 Mercedes-Benz GLS580 or 2026 Porsche Cayenne?
- The 2026 Porsche Cayenne leads on startingMsrp in this comparison (89,900).
- Which has better combinedMpg: 2026 Mercedes-Benz GLS580 or 2026 Porsche Cayenne?
- The 2026 Porsche Cayenne leads on combinedMpg in this comparison (22).
- Which has better electricRangeMi: 2026 Mercedes-Benz GLS580 or 2026 Porsche Cayenne?
- The 2026 Porsche Cayenne leads on electricRangeMi in this comparison (29).
- Which has better horsepower: 2026 Mercedes-Benz GLS580 or 2026 Porsche Cayenne?
- The 2026 Porsche Cayenne leads on horsepower in this comparison (1,139).
- Which has better seats: 2026 Mercedes-Benz GLS580 or 2026 Porsche Cayenne?
- The 2026 Mercedes-Benz GLS580 leads on seats in this comparison (7).
- Which has better maxTowingLbs: 2026 Mercedes-Benz GLS580 or 2026 Porsche Cayenne?
- The 2026 Porsche Cayenne leads on maxTowingLbs in this comparison (7,716).