2027 Mercedes-AMG® GT vs. Porsche 911
The 2027 Mercedes-AMG® GT 55 Coupe and the 2027 Porsche 911 Carrera 4S are all-wheel-drive performance coupes rated at 469 horsepower and 473 horsepower. The GT 55 Coupe starts at $137,450 and the 911 Carrera 4S at $164,500, both excluding destination. The 911 Carrera 4S reaches 60 mph in 3.3 seconds to the GT 55 Coupe’s 3.8 seconds, and has a curb weight of 3,523 lbs to the GT 55 Coupe’s 4,255 lbs.
Key differences
- The GT 55 Coupe starts at $137,450 and the 911 Carrera 4S at $164,500, both excluding destination.
- The 911 Carrera 4S is rated 473 horsepower and the GT 55 Coupe 469 horsepower.
- The GT 55 Coupe produces 516 lb-ft of torque to the 911 Carrera 4S’s 390 lb-ft.
- The 911 Carrera 4S reaches 60 mph in 3.3 seconds and the GT 55 Coupe in 3.8 seconds.
- The 911 Carrera 4S has a curb weight of 3,523 lbs to the GT 55 Coupe’s 4,255 lbs.
- The GT 55 Coupe holds 11.3 cubic feet of cargo. Porsche publishes a 4.8 cubic foot front luggage compartment volume for the 911 Carrera 4S.
Main matchup
| Specification | 2027 Mercedes-AMG® GT 55 Coupe | 2027 Porsche 911 Carrera 4S |
|---|---|---|
| Starting MSRP, excluding destination | $137,450 | $164,500 |
| Destination charge | $1,450 or $1,550 depending on the model | Not published by Porsche |
| Engine | Handcrafted AMG® 4.0L V8 biturbo | 3.0-liter 6-cylinder, 2,981 cc |
| Horsepower | 469 hp | 473 hp |
| Torque | 516 lb-ft | 390 lb-ft |
| Transmission | AMG® SPEEDSHIFT® MCT 9-speed | 8-speed Porsche Doppelkupplung (PDK) |
| Standard drivetrain | AMG® Performance 4MATIC®+ all-wheel drive | All-wheel drive |
| 0-60 mph | 3.8 sec | 3.3 sec, 3.1 sec with Sport Chrono Package |
| Top speed | 183 mph top track speed, electronically limited | 191 mph top track speed with summer tires |
| EPA combined fuel economy | 16 mpg | 20 mpg, 2026 EPA rating |
| Curb weight | 4,255 lbs | 3,523 lbs |
| Seating capacity | 2, 4 optional | Not published by Porsche |
| Cargo volume | 11.3 cu ft | 4.8 cu ft, front luggage compartment |
| New vehicle limited warranty | 4 years / 50,000 miles | 4 years / 50,000 miles |
| Powertrain warranty | No separate term published | No separate term published |
| Complimentary scheduled maintenance | None | Not published |
| IIHS award, this model year | Not yet rated | Not yet rated |
Notes: Porsche does not publish a destination charge amount or a seating capacity for the 911, and publishes a front luggage compartment volume rather than a cargo volume. fueleconomy.gov has no 2027 entry for the 911, so the 20 mpg combined figure is the 2026 EPA rating for the 911 Carrera 4S. IIHS has not rated the 2027 Mercedes-AMG® GT or the 2027 Porsche 911.
Performance matchup
The performance trims are the Mercedes-AMG® GT 63 Coupe and the Porsche 911 Carrera 4 GTS.
| Specification | 2027 Mercedes-AMG® GT 63 Coupe | 2027 Porsche 911 Carrera 4 GTS |
|---|---|---|
| Starting MSRP, excluding destination | $184,000 | $189,300 |
| Destination charge | $1,450 or $1,550 depending on the model | Not published by Porsche |
| Engine | Handcrafted AMG® 4.0L V8 biturbo | 3.6-liter flat 6 with electric exhaust turbocharger, T-Hybrid technology, 3,591 cc |
| Horsepower | 577 hp | 532 hp combined, 478 hp engine |
| Torque | 590 lb-ft | 449 lb-ft combined, 420 lb-ft engine |
| Transmission | AMG® SPEEDSHIFT® MCT 9-speed | Porsche Doppelkupplung (PDK) |
| Standard drivetrain | AMG® Performance 4MATIC®+ all-wheel drive | All-wheel drive |
| 0-60 mph | 3.1 sec | 2.9 sec with Sport Chrono Package |
| Top speed | 196 mph top track speed, electronically limited | 194 mph top track speed with summer tires |
| EPA combined fuel economy | 16 mpg | 19 mpg, 2026 EPA rating |
| Curb weight | 4,321 lbs | 3,635 lbs |
| Seating capacity | 2, 4 optional | Not published by Porsche |
| Cargo volume | 11.3 cu ft | 4.8 cu ft, front luggage compartment |
| New vehicle limited warranty | 4 years / 50,000 miles | 4 years / 50,000 miles |
| Powertrain warranty | No separate term published | No separate term published |
| Complimentary scheduled maintenance | None | Not published |
| IIHS award, this model year | Not yet rated | Not yet rated |
Notes: Porsche publishes a 0-60 mph time for the 911 Carrera 4 GTS only with the Sport Chrono Package, and publishes 532 horsepower and 449 lb-ft as combined figures for its T-Hybrid system. fueleconomy.gov has no 2027 entry for the 911, so the 19 mpg combined figure is the 2026 EPA rating for the 911 Carrera 4 GTS.
Maintenance
Mercedes-Benz publishes no included scheduled maintenance for the 2027 AMG® GT. Porsche does not publish an included scheduled maintenance term for the 2027 911. Mercedes-Benz Prepaid Maintenance plans are available at Mercedes-Benz of Columbus North.
Why shop the AMG® GT at Mercedes-Benz of Columbus North
- America’s first AMG® Brand Center, with a dedicated AMG® showroom and AMG®-trained specialists
- No market adjustments above MSRP and no mandatory dealer add-ons on any new vehicle. See How We Price
- AMG® service with AMG®-specific tooling. See Mercedes-AMG® service
Questions
Is the Mercedes-AMG® GT 55 Coupe faster than the Porsche 911 Carrera 4S?
The 911 Carrera 4S reaches 60 mph in 3.3 seconds and the GT 55 Coupe in 3.8 seconds. The 911 Carrera 4S is rated 473 horsepower and the GT 55 Coupe 469 horsepower.
Which has more horsepower, the Mercedes-AMG® GT 55 Coupe or the Porsche 911 Carrera 4S?
The 911 Carrera 4S produces 473 horsepower and the GT 55 Coupe 469 horsepower. In the performance matchup the Mercedes-AMG® GT 63 Coupe produces 577 horsepower and the Porsche 911 Carrera 4 GTS 532 horsepower combined.
Which costs more to start, the Mercedes-AMG® GT 55 Coupe or the Porsche 911 Carrera 4S?
The 911 Carrera 4S starts at $164,500 and the GT 55 Coupe at $137,450, both excluding destination.
Which includes scheduled maintenance?
Neither. Mercedes-Benz publishes no included scheduled maintenance for the AMG® GT, and Porsche does not publish an included scheduled maintenance term for the 911. Mercedes-Benz Prepaid Maintenance plans are available at Mercedes-Benz of Columbus North.
Where can I test drive a Mercedes-AMG® GT near Columbus?
At the AMG® Brand Center at Mercedes-Benz of Columbus North, 7990 State Route 37 East, Sunbury, Ohio 43074.
View AMG® Inventory Request a Test Drive
Sources
- https://www.mbusa.com/en/vehicles/model/gt/amg-gt-2-door/amggt55
- https://www.mbusa.com/en/vehicles/model/gt/amg-gt-2-door/amggt63
- https://www.mbusa.com/en/vehicles/class/amg-gt/coupe
- https://media.mbusa.com/news/2027-mercedes-benz-usa-model-line-updates
- https://www.mbusa.com/content/dam/mb-nafta/us/my27-content-request/PCwarrantymanualusa.pdf
- https://www.mbusa.com/en/owners/service-maintenance/prepaid
- https://www.porsche.com/usa/models/911/configure/
- https://www.porsche.com/usa/models/911/carrera-models/911-carrera-4s/
- https://www.porsche.com/usa/models/911/carrera-models/911-carrera-4-gts/
- https://www.porsche.com/usa/accessoriesandservices/porscheservice/vehicleinformation/warranty/
- https://www.fueleconomy.gov/feg/noframes/50462.shtml
- https://www.fueleconomy.gov/feg/noframes/50709.shtml
- https://www.fueleconomy.gov/feg/noframes/49995.shtml
- https://www.fueleconomy.gov/feg/noframes/49784.shtml
Last verified: October 29, 2026
Specifications and prices are from each manufacturer’s US website or press release as of the date above and may change. Starting MSRP is the manufacturer’s base price and excludes the destination charge, taxes, title, registration, options, and dealer fees. BMW, M3, Porsche, 911, Land Rover, and Range Rover are trademarks of their respective owners. Mercedes-Benz of Columbus North is not affiliated with BMW, Porsche, or Land Rover.