2025 Mercedes-Benz Maybach GLS vs 2025 Porsche Cayenne Coupe
Comparison Overview
Choosing between ultimate opulent comfort and athletic precision often plagues luxury SUV buyers. The 2025 Mercedes-Benz Maybach GLS starts at a steep $178,450, demanding a significant investment compared to the 2025 Porsche Cayenne Coupe's $89,800 entry price—a difference of $88,650. Power heavily favors the Maybach, boasting 550 hp and 538 lb-ft of torque against the Cayenne Coupe's 348 hp. However, efficiency swings decisively to the Porsche, achieving 19 combined MPG versus the Maybach's 15 combined MPG. While the Maybach is substantially larger at 204.9 inches long, the Cayenne Coupe paradoxically offers slightly more utility with 20.9 cu ft of cargo space compared to the Maybach's 18.4 cu ft, highlighting a key difference between sheer presence and usable daily space.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2025 Porsche Cayenne Coupe
The Cayenne Coupe is the better commuter due to its superior fuel economy, delivering 19 combined MPG versus the Maybach's 15 MPG.
2025 Mercedes-Benz Maybach GLS
Despite having slightly less cargo volume, the Maybach GLS offers unparalleled rear-seat luxury and a commanding road presence better suited for family status.
2025 Mercedes-Benz Maybach GLS
The Maybach GLS’s significant output of 550 hp and 538 lb-ft of torque provides brute force performance that eclipses the Cayenne Coupe.
2025 Porsche Cayenne Coupe
The Cayenne Coupe costs $88,650 less while still offering AWD performance and respectable power for daily driving.
Choose the Mercedes-Benz Maybach GLS if...
- You prioritize massive horsepower, as the Maybach GLS delivers 550 hp.
- You want the largest vehicle footprint, evidenced by its 204.9-inch length.
- Budget is secondary to achieving the absolute pinnacle of V8-powered luxury SUV opulence.
Choose the Porsche Cayenne Coupe if...
- You are concerned about operating costs and achieve 19 combined MPG.
- You prefer a slightly more agile form factor, being over 10 inches shorter than the Maybach.
- You want nearly 21 cu ft of cargo space from a performance-oriented crossover.
Key Dimensions
| Dimension | Mercedes-Benz Maybach GLS | Porsche Cayenne Coupe |
|---|---|---|
| Length | 204.9" | 194.0" |
| Width | 79.9" | 78.1" |
| Height | 72.4" | 66.1" |
| Wheelbase | 123.4" | 114.0" |
Features Comparison
Safety
| Feature | Mercedes-Benz | Porsche |
|---|---|---|
| Blind Spot Monitor | ✓ | ✓ |
| Lane Departure Warning | ✓ | ✓ |
| Lane Keeping Assist System | ✓ | ✓ |
| Front Cross Traffic Alert | ✓ | — |
| Rear Cross Traffic Alert | ✓ | ✓ |
| Driver Attention Alert | ✓ | — |
| Pre-Collision Safety System | ✓ | ✓ |
| Post-Collision Safety System | ✓ | ✓ |
| Dual Front Side-Mounted Airbags | ✓ | ✓ |
| Dual Rear Side-Mounted Airbags | ✓ | ✓ |
| Front Head Airbags | ✓ | ✓ |
| Rear Head Airbags | ✓ | ✓ |
| Passenger Airbag Occupant Sensing Deactivation | ✓ | ✓ |
| Electronic Stability Control | ✓ | ✓ |
| Traction Control System | ✓ | ✓ |
| LATCH System | ✓ | ✓ |
| Rear Door Child Safety Locks | ✓ | ✓ |
| Anti-lock Brakes (ABS) | 4-Wheel | 4-Wheel |
| Brake Drying | ✓ | — |
| Front Ventilated Disc Brakes | ✓ | ✓ |
| Rear Ventilated Disc Brakes | ✓ | ✓ |
| Brake Preparation System | ✓ | — |
| Brake Assist | ✓ | ✓ |
| Tire Pressure Monitoring System | ✓ | ✓ |
| Automatic Headlights | ✓ | ✓ |
| Headlight Delay-Off | ✓ | ✓ |
| LED Headlights | ✓ | ✓ |
| Adaptive Headlights | ✓ | ✓ |
| Daytime Running Lights | ✓ | ✓ |
| Cornering Lights | ✓ | ✓ |
| Integrated Turn Signal Mirrors | ✓ | ✓ |
| Front Headrests | 2 | 2 |
| Front Power Adjustable Headrests | ✓ | — |
| Rear Headrests | 3 | 2 |
| Rear Multi-Adjustable Headrests | ✓ | — |
| Rear Center 3-Point Seatbelt | ✓ | — |
| Anti-Theft Alarm System (Remote) | ✓ | ✓ |
| Engine Immobilizer | ✓ | ✓ |
| Front Integrated Headrests | — | ✓ |
| Rear Height Adjustable Headrests | — | ✓ |
Engine
| Feature | Mercedes-Benz | Porsche |
|---|---|---|
| Base Engine Displacement | 4.0 L | 3.0 L |
| Number of Cylinders | V8 | V6 |
| Base Engine Type | mild hybrid | gas |
| Horsepower | 550 hp @ 6500 rpm | 348 hp @ 5400 rpm |
| Torque | 538 lb-ft @ 5000 rpm | 368 lb-ft @ 1450 rpm |
| Number of Valves | 32 | 24 |
| Camshaft Type | Double overhead cam (DOHC) | Double overhead cam (DOHC) |
| Variable Valve Timing | Variable | Variable |
| Fuel Injection Type | ✓ | ✓ |
Drive Train
| Feature | Mercedes-Benz | Porsche |
|---|---|---|
| Transmission Type | 9-speed shiftable automatic | 8-speed shiftable automatic |
| Drivetrain Type | all wheel drive | all wheel drive |
| Center Differential Type | Limited Slip | Limited Slip |
| Hill Descent Control | ✓ | ✓ |
Fuel
| Feature | Mercedes-Benz | Porsche |
|---|---|---|
| Fuel Type | premium unleaded (required) | premium unleaded (required) |
| EPA Fuel Economy (City/Highway) | 13/18 MPG | 17/23 MPG |
| EPA Fuel Economy (Combined) | 15 MPG | 19 MPG |
| EPA Driving Range (City/Highway) | 309.4/428.4 mi. | 402.9/545.1 mi. |
| Fuel Tank Capacity | 23.8 gal. | 23.7 gal. |
Comfort & Convenience
| Feature | Mercedes-Benz | Porsche |
|---|---|---|
| Push Button Start | ✓ | ✓ |
| Power Tilt and Telescopic Steering Wheel | ✓ | ✓ |
| Transmission Controls on Steering Wheel | ✓ | ✓ |
| Cruise Control on Steering Wheel | ✓ | — |
| Audio Controls on Steering Wheel | ✓ | ✓ |
| Electric Power Steering | ✓ | ✓ |
| Front View Camera | ✓ | ✓ |
| Side View Camera | ✓ | ✓ |
| Rear View Camera | ✓ | ✓ |
| Front Parking Sensors | ✓ | ✓ |
| Rear Parking Sensors | ✓ | ✓ |
| Automatic Parking Assist | ✓ | ✓ |
| Wireless Charging Pad | ✓ | ✓ |
| Adaptive Cruise Control | ✓ | — |
| Universal Remote Transmitter | ✓ | ✓ |
| Front Cupholders | ✓ | ✓ |
| Rear Cupholders | ✓ | ✓ |
| Front Door Pockets | ✓ | ✓ |
| Rear Door Pockets | ✓ | ✓ |
| Front Seatback Storage | ✓ | ✓ |
| Leather Steering Wheel | ✓ | ✓ |
| Heated Steering Wheel | ✓ | — |
| Four Zone Climate Control | ✓ | — |
| Rear Ventilation Ducts with Fan Control | ✓ | — |
| Interior Air Filtration | ✓ | ✓ |
| Sun Sensor | ✓ | — |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | ✓ |
| Turn Signal Indicators in Mirrors | ✓ | ✓ |
| Cruise Control | — | ✓ |
| Dual Zone Climate Control | — | ✓ |
| Rear Ventilation Ducts | — | ✓ |
| Cooled Storage Compartment | — | ✓ |
In Car Entertainment
| Feature | Mercedes-Benz | Porsche |
|---|---|---|
| Infotainment Display | 12.3 in | — |
| AM/FM Stereo | ✓ | ✓ |
| Premium Brand Stereo System | Burmester | — |
| Premium Speaker Brand | Burmester | — |
| Stereo Power | 1590W | 150W |
| Speaker System | 27 | 10 |
| Subwoofer Count | 1 | — |
| Surround Audio | Discrete | — |
| Android Auto (Wired) | ✓ | ✓ |
| Apple CarPlay (Wired) | ✓ | ✓ |
| USB Port | ✓ | ✓ |
| USB Port with External Media Control | ✓ | — |
| Satellite Radio | With Real Time Traffic | ✓ |
| Satellite Radio Subscription Duration | 36 months | — |
| Speed Sensitive Volume Control | ✓ | — |
| Auxiliary Audio Input | — | ✓ |
| Satellite Radio Trial Period | — | 3 months |
Power Feature
| Feature | Mercedes-Benz | Porsche |
|---|---|---|
| One-Touch Power Windows | 4 | 4 |
| Sunroof Type | 1st Row Power Fabric Extended | — |
| Moonroof Type | 2nd Row Fixed Glass | 1st Row Fixed Glass Extended |
| Keyless Entry | ✓ | ✓ |
| Reverse Tilt Dual Mirrors | ✓ | — |
| Heated Mirrors | ✓ | ✓ |
Frontseats
| Feature | Mercedes-Benz | Porsche |
|---|---|---|
| Front Head Room | 42.5 in. | — |
| Front Leg Room | 40.3 in. | — |
| Front Shoulder Room | 59.3 in. | — |
| Seat Material: Premium Leather | ✓ | — |
| Front Seat Type: Bucket | ✓ | — |
| Driver Seat Power Adjustments | 12-way | 8-way |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Lumbar Support | Power | — |
| Driver Seat Thigh Extension | ✓ | — |
| Driver Seat Memory Settings | 3 | 3 |
| Passenger Seat Power Adjustments | 12-way | 8-way |
| Passenger Seat Height Adjustment | ✓ | ✓ |
| Passenger Seat Lumbar Support | Power | — |
| Passenger Seat Thigh Extension | ✓ | — |
| Passenger Seat Memory Settings | 3 | — |
| Driver Seat Heating | Multi-level | Multi-level |
| Passenger Seat Heating | Multi-level | Multi-level |
| Driver Seat Ventilation | ✓ | — |
| Passenger Seat Ventilation | ✓ | — |
| Seat Massage Function | ✓ | — |
| Seat Material: Leather | — | ✓ |
| Front Seat Type: Sport | — | ✓ |
Rearseats
| Feature | Mercedes-Benz | Porsche |
|---|---|---|
| Rear Head Room | 40.2 in. | — |
| Rear Leg Room | 43.4 in. | — |
| Rear Shoulder Room | 56.1 in. | — |
| Split-Folding Rear Seatback | ✓ | ✓ |
| Reclining Rear Seats | ✓ | — |
| Folding Center Armrest | ✓ | ✓ |
| Heated Rear Seats (Multi-Level) | ✓ | — |
| Rear Seat Ventilation | ✓ | — |
Tires and Wheels
| Feature | Mercedes-Benz | Porsche |
|---|---|---|
| Wheel Material | Alloy | Alloy |
| Wheel Size | 22 x 11.5 in. | 20 x 10.5 in. |
| Tire Type | Performance | All Season |
| Tire Size | 325/40R22 | 295/45R20 |
| Spare Tire Type | — | Temporary |
| Spare Tire Location | — | Inside Mounted |
Suspension
| Feature | Mercedes-Benz | Porsche |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | ✓ | ✓ |
| Rear Stabilizer Bar | ✓ | ✓ |
Warranty
| Feature | Mercedes-Benz | Porsche |
|---|---|---|
| Basic Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| Drivetrain Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| Hybrid Component Warranty | 6 yr./ 62000 mi. | — |
| Corrosion/Rust Warranty | 4 yr./ 50000 mi. | 12 yr./ unlimited mi. |
| Roadside Assistance | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| EV Battery Warranty | — | 8 yr./ 100000 mi. |
Frequently Asked Questions
Common questions about comparing the 2025 Mercedes-Benz Maybach GLS and 2025 Porsche Cayenne Coupe.
What is the practical effect of the massive price gap between these two SUVs?
The $178,450 MSRP for the Maybach GLS versus the $89,800 for the Cayenne Coupe represents an $88,650 decision point; buyers save nearly half the cost by opting for the Porsche while still getting premium AWD performance.
How much more powerful is the Mercedes-Benz Maybach GLS?
The Maybach GLS has 202 more horsepower than the Cayenne Coupe, producing 550 hp compared to the Porsche's 348 hp, alongside a substantial 538 lb-ft of torque versus 368 lb-ft.
Is the Mercedes large size reflected in its cargo capacity?
Surprisingly, no; despite being 204.9 inches long, the Maybach GLS only offers 18.4 cu ft of cargo space, which is actually less than the smaller Cayenne Coupe's 20.9 cu ft.
Which vehicle is better for minimizing gas station visits?
The 2025 Porsche Cayenne Coupe wins clearly with 19 combined MPG (17 city/23 highway), significantly better than the Maybach GLS's 15 combined MPG (13 city/18 highway).
Do both vehicles require premium fuel?
Yes, both the 2025 Mercedes-Benz Maybach GLS and the 2025 Porsche Cayenne Coupe mandate premium unleaded fuel for optimal performance.
How different are their transmissions in daily driving?
The Maybach uses a 9-speed automatic transmission, while the Cayenne Coupe utilizes an 8-speed automatic; the Maybach's extra gear may slightly aid highway cruising efficiency, though its overall MPG is lower.
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