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Mercedes-Benz GLS580 vs Porsche Cayenne

Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.

Vehicles

Mercedes-Benz logo

2027 Mercedes-Benz GLS580

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Porsche logo

2027 Porsche Cayenne

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Overview

SpecMercedes-Benz GLS580GLS 580Porsche CayenneE-Hybrid
Selected trimGLS 580E-Hybrid
Body styleSUVSUV
Drivetrainall wheel driveall wheel drive
Fuel typepremium unleaded (required)premium unleaded (required)
Transmission9-speed automatic8-speed automatic
Engine typemild hybridplug-in hybrid
Model year20272027

Pricing & market

SpecMercedes-Benz GLS580GLS 580Porsche CayenneE-Hybrid
MSRP$120,950$107,300 (best)
Lowest listing price—$21,380 (best)
Median listing price—$105,722 (best)
Highest listing price—$132,032 (best)
For sale now06 (best)

Fuel economy & range

SpecMercedes-Benz GLS580GLS 580Porsche CayenneE-Hybrid
Combined MPG16 MPG22 MPG (best)
City MPG14 MPG (best)—
Highway MPG20 MPG (best)—
Fuel tank24 gal (best)18 gal

Performance

SpecMercedes-Benz GLS580GLS 580Porsche CayenneE-Hybrid
Horsepower530 hp (best)463 hp
Torque553 lb-ft (best)479 lb-ft
Engine size4 L (best)3 L
CylindersV8V6

Size & capability

SpecMercedes-Benz GLS580GLS 580Porsche CayenneE-Hybrid
Seating7 seats (best)5 seats
Doors44
Towing capacity7,700 lbs7,716 lbs (best)
Curb weight—5,415 lbs (best)
Ground clearance8 in (best)—
Wheelbase123 in (best)114 in
Length205 in (best)194 in
Width80 in (best)78 in
Height72 in (best)66 in

Safety & recalls

SpecMercedes-Benz GLS580GLS 580Porsche CayenneE-Hybrid
Open recalls (YMM scope)None reportedNone 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.

TrimMercedes-Benz GLS580Porsche Cayenne
1

GLS 580

$120,950 MSRP(Currently comparing)

E-Hybrid

$107,300 MSRP(Currently comparing)

2—

S

$108,300 MSRP

3—

S

$114,900 MSRP

4—

S E-Hybrid

$111,600 MSRP

5—

S E-Hybrid

$117,100 MSRP

6—

GTS

$132,400 MSRP

7—

GTS

$137,100 MSRP

8—

Turbo E-Hybrid

$164,500 MSRP

9—

Turbo E-Hybrid

$169,100 MSRP

Live inventory

Mercedes-Benz GLS580 vs Porsche Cayenne FAQ

Which is better: 2027 Mercedes-Benz GLS580 or 2027 Porsche Cayenne?
It depends on priorities. OpenDealer compares 2027 Mercedes-Benz GLS580 vs 2027 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: 2027 Mercedes-Benz GLS580 or 2027 Porsche Cayenne?
Based on starting MSRP, the 2027 Porsche Cayenne starts lower at $107,300. Live Porsche Cayenne listings start at $21,380.
Which has better startingMsrp: 2027 Mercedes-Benz GLS580 or 2027 Porsche Cayenne?
The 2027 Porsche Cayenne leads on startingMsrp in this comparison (107,300).
Which has better combinedMpg: 2027 Mercedes-Benz GLS580 or 2027 Porsche Cayenne?
The 2027 Porsche Cayenne leads on combinedMpg in this comparison (22).
Which has better horsepower: 2027 Mercedes-Benz GLS580 or 2027 Porsche Cayenne?
The 2027 Porsche Cayenne leads on horsepower in this comparison (729).
Which has better seats: 2027 Mercedes-Benz GLS580 or 2027 Porsche Cayenne?
The 2027 Mercedes-Benz GLS580 leads on seats in this comparison (7).
Which has better maxTowingLbs: 2027 Mercedes-Benz GLS580 or 2027 Porsche Cayenne?
The 2027 Porsche Cayenne leads on maxTowingLbs in this comparison (7,716).