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Mercedes-Benz G580 vs Porsche Cayenne

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

Vehicles

Mercedes-Benz logo

2026 Mercedes-Benz G580

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Porsche logo

2027 Porsche Cayenne

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Overview

SpecMercedes-Benz G580G 580 w/EQ TechnologyPorsche CayenneE-Hybrid
Selected trimG 580 w/EQ TechnologyE-Hybrid
Body styleSUVSUV
Drivetrainfour wheel driveall wheel drive
Fuel typeelectricpremium unleaded (required)
Transmission1-speed direct drive8-speed automatic
Engine typeelectricplug-in hybrid
Model year20262027

Pricing & market

SpecMercedes-Benz G580G 580 w/EQ TechnologyPorsche CayenneE-Hybrid
MSRP$163,200$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 G580G 580 w/EQ TechnologyPorsche CayenneE-Hybrid
Combined MPG—22 MPG (best)
Combined MPGe62 MPGe (best)—
Electric range239 mi (best)—
Battery capacity122 kWh (best)—
240V charge time14 hr (best)—
Fuel tank—18 gal (best)

Performance

SpecMercedes-Benz G580G 580 w/EQ TechnologyPorsche CayenneE-Hybrid
Horsepower579 hp (best)463 hp
Torque859 lb-ft (best)479 lb-ft
Engine size—3 L (best)
Cylinders—V6

Size & capability

SpecMercedes-Benz G580G 580 w/EQ TechnologyPorsche CayenneE-Hybrid
Seating5 seats5 seats
Doors44
Cargo volume37.3 cu ft (best)—
Towing capacity—7,716 lbs (best)
Payload915 lbs (best)—
Curb weight6,746 lbs5,415 lbs (best)
Ground clearance9.8 in (best)—
Wheelbase113.8 in114 in (best)
Length182 in194 in (best)
Width76 in78 in (best)
Height78.2 in (best)66 in

Safety & recalls

SpecMercedes-Benz G580G 580 w/EQ TechnologyPorsche 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 G580Porsche Cayenne
1

G 580 w/EQ Technology

$163,200 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 G580 vs Porsche Cayenne FAQ

Which is better: 2026 Mercedes-Benz G580 or 2027 Porsche Cayenne?
It depends on priorities. OpenDealer compares 2026 Mercedes-Benz G580 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: 2026 Mercedes-Benz G580 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: 2026 Mercedes-Benz G580 or 2027 Porsche Cayenne?
The 2027 Porsche Cayenne leads on startingMsrp in this comparison (107,300).
Which has better combinedMpg: 2026 Mercedes-Benz G580 or 2027 Porsche Cayenne?
The 2027 Porsche Cayenne leads on combinedMpg in this comparison (22).
Which has better electricRangeMi: 2026 Mercedes-Benz G580 or 2027 Porsche Cayenne?
The 2026 Mercedes-Benz G580 leads on electricRangeMi in this comparison (239).
Which has better horsepower: 2026 Mercedes-Benz G580 or 2027 Porsche Cayenne?
The 2027 Porsche Cayenne leads on horsepower in this comparison (729).
Which has better maxTowingLbs: 2026 Mercedes-Benz G580 or 2027 Porsche Cayenne?
The 2027 Porsche Cayenne leads on maxTowingLbs in this comparison (7,716).