News
Features
New Cars
Used Cars
Shopping Tools
2020 Awards
  1. Home
  2. Compare Cars
  3. Compare Mercedes-AMG GT Roadster vs Porsche 911 Carrera Cabriolet vs Porsche 911 GT2

Compare Mercedes-AMG GT Roadster vs Porsche 911 Carrera Cabriolet vs Porsche 911 GT2

Mercedes-AMG GT Roadster
2021 Mercedes-AMG GT Roadster
Select configuration:
$130,700
Starting Price (MSRP)
8.8
Mercedes-AMG GT Roadster For Sale Mercedes-AMG GT Roadster Full Review
Change Car
Porsche 911 Carrera Cabriolet
2021 Porsche 911 Carrera Cabriolet
Select configuration:
$112,000
Starting Price (MSRP)
8.6
Porsche 911 Carrera Cabriolet For Sale Porsche 911 Carrera Cabriolet Full Review
Change Car
Porsche 911 GT2
2008 Porsche 911 GT2
Select configuration:
$191,700
Starting Price (MSRP)
N/A
Porsche 911 GT2 For Sale Porsche 911 GT2 Full Review
Change Car

Overview

Engine
4.0L Twin-Turbo V8 Gas
Engine
3.0L Twin-Turbo Flat 6 Gas
Engine
3.6L Flat 6 Gas
Transmission
7-Speed Automatic
Transmission
8-Speed Automatic
Transmission
6-Speed Manual
Drivetrain
Rear-Wheel Drive
Drivetrain
Rear-Wheel Drive
Drivetrain
Rear-Wheel Drive
Fuel Economy
City: 15 MPG
Hwy: 20 MPG
Fuel Economy
City: 18 MPG
Hwy: 24 MPG
Fuel Economy
City: 16 MPG
Hwy: 23 MPG
Fuel Tank Capacity
19.8 gallons
Fuel Tank Capacity
16.9 gallons
Fuel Tank Capacity
17.7 gallons
Seating Capacity
2 seater
Seating Capacity
4 seater
Seating Capacity
2 seater
Trunk Volume
5.8 ft³
Trunk Volume
N/A
Trunk Volume
3.3 ft³

Photos

Mercedes-AMG GT Roadster
2020-2021 Mercedes-Benz AMG GT Roadster Rear View Driving
2020-2021 Mercedes-Benz AMG GT Roadster Center Stack
26
More
Porsche 911 Carrera Cabriolet
2020-2021 Porsche 911 Carrera Cabriolet Instrument Board
27
More
Porsche 911 GT2
2008 Porsche 911 GT2 Rear Angle View
2008 Porsche 911 GT2 Steering Wheel
29
More

Performance Specs

Engine and Transmission

Engine
4.0L Twin-Turbo V8 Gas
3.0L Twin-Turbo Flat 6 Gas
3.6L Flat 6 Gas
Horsepower
523 hp @ 5500 rpm
379 hp @ 6500 rpm
530 hp @ 6500 rpm
Torque
494 lb-ft @ 2100 rpm
331 lb-ft @ 1950 rpm
505 lb-ft @ 2200-4500 rpm
Transmission
7-Speed Automatic
8-Speed Automatic
6-Speed Manual
Drivetrain
Rear-Wheel Drive
Rear-Wheel Drive
Rear-Wheel Drive

Weight and Towing

Curb Weight
3,763 lbs
3,508 lbs
3,175 lbs

Fuel and MPG

Fuel Economy

Combined
17 MPG
20 MPG
N/A
City
15 MPG
18 MPG
16 MPG
Highway
20 MPG
24 MPG
23 MPG

Emissions

CO2 Emissions @ 15K mi/year
10.4 Tons/yr
8.8 Tons/yr
N/A

Fuel Tank

Fuel Tank Capacity
19.8 gallons
16.9 gallons
17.7 gallons
Cruising Range City
297 miles
304.2 miles
283.2 miles
Cruising Range Highway
396 miles
405.6 miles
407.1 miles

Dimensions and Measurement

Exterior Dimensions

Length
179 in
177.9 in
176.3 in
Height
49.6 in
51.1 in
51.2 in
Max Width
76.3 in
72.9 in
72.9 in
Front Width
66.3 in
62.7 in
58.7 in
Rear Width
65 in
61.2 in
60.9 in
Wheelbase
103.5 in
96.5 in
92.5 in

Interior Space

Seating Capacity
2 seater
4 seater
2 seater
Front Seat Headroom
38 in
N/A
N/A
Front Seat Shoulder Room
58.4 in
N/A
N/A

Cargo Space

Trunk Volume
5.8 ft³
N/A
3.3 ft³

Wheels and Suspension

Steering

Steering Type
Rack-Pinion
Rack-Pinion
Pwr Rack & Pinion
Turning Diameter
41 ft
36.8 ft
N/A

Wheels

Wheels Type
Aluminum Wheels
Aluminum Wheels
N/A
Front Wheel Size
19" x 9"
19" x 8.5"
19" x 8.5"
Rear Wheel Size
19" x 11"
20" x 11.5"
19" x 12"

Suspension

Front Suspension
Double Wishbone
Strut
MacPherson Strut
Rear Suspension
Double Wishbone
Multi-Link
Multi-Link

Tires

Front Tire
P255/35ZR19
P235/40YR19
P235/35ZR19
Rear Tire
P295/30ZR19
P295/35YR20
P325/30ZR19

Colors and Materials

Standard Exterior Colors

  • Black
  • Cirrus Silver Metallic
  • Jupiter Red
  • Black
  • Guards Red
  • Racing Yellow
  • White
N/A

Optional Exterior Colors

  • Brilliant Blue Metallic
  • Obsidian Black Metallic
  • Selenite Grey Metallic
  • designo Diamond White
  • designo Brilliant Blue Magno
  • designo Graphite Grey Magno
  • designo Selenite Grey Magno
  • Agate Grey Metallic
  • Aventurine Green Metallic
  • Carrara White Metallic
  • Dolomite Silver Metallic
  • Gentian Blue Metallic
  • GT Silver Metallic
  • Jet Black Metallic
  • Night Blue Metallic
  • Carmine Red
  • Chalk
  • Lava Orange
  • Miami Blue
  • Python Green
  • Custom Color
N/A

Standard Interior Materials

  • Black w/Diamond Stitching, Exclusive Nappa Leather Upholstery
  • Black, MB-Tex/DINAMICA Upholstery
  • Atacama Beige/Black, Leather Seat Trim w/Two-Tone Heritage Design Interior
  • Black, Leather Seat Trim
  • Black, Leather Seat Trim
  • Black, Leather Seat Trim w/Heritage Design Interior
  • Chalk/Bordeaux Red, Lthr Seat Trim w/930 Leather Pkg & Two-Tone Interior
  • Iceland Green/Black, Lthr Seat Trim w/930 Leather Pkg & Two-Tone Interior
  • Mojave Beige/Blue, Lthr Seat Trim w/930 Leather Pkg & Two-Tone Interior
  • Slate Grey, Leather Seat Trim
  • Slate Grey, Leather Seat Trim
  • Slate Grey/Black, Lthr Seat Trim w/930 Leather Pkg & Two-Tone Interior
  • FULL LEATHER INTERIOR

Optional Interior Materials

  • Auburn Brown, Nappa Leather Upholstery
  • Black, Nappa Leather Upholstery
  • Red Pepper/Black, Nappa Leather Upholstery
  • Silver Pearl/Black, Nappa Leather Upholstery
  • Mojave Beige/Black, Leather Seat Trim w/Two-Tone Interior
  • Mojave Beige/Black, Leather Seat Trim w/Two-Tone Interior
  • Black, Leather Seat Trim w/Leather Package
  • Slate Grey, Leather Seat Trim w/Leather Package
  • Black, Leather Seat Trim w/Leather Interior
  • Black, Leather Seat Trim w/Sport-Tex Centers
  • Black, Lthr Seat Trim w/Lthr Interior & Chalk Stitching
  • Black, Lthr Seat Trim w/Sport-Tex Centers & Chalk Stitching
  • Bordeaux Red, Leather Seat Trim w/Leather Interior
  • Bordeaux Red, Lthr Seat Trim w/Lthr Interior & Chalk Stitching
  • Graphite Blue, Leather Seat Trim w/Leather Interior
  • Graphite Blue, Lthr Seat Trim w/Lthr Interior & Chalk Stitching
  • Slate Grey, Leather Seat Trim w/Leather Interior
  • Slate Grey, Lthr Seat Trim w/Lthr Interior & Chalk Stitching
  • Bordeaux Red/Black, Leather Seat Trim w/Two-Tone Leather Interior
  • Chalk/Slate Grey, Leather Seat Trim w/Two-Tone Leather Interior
  • Iceland Green/Black, Leather Seat Trim w/Two-Tone Leather Interior
  • Mojave Beige/Black, Leather Seat Trim w/Two-Tone Leather Interior
  • Agave Green, Club Leather Seat Trim
  • Agave Green, Club Leather Seat Trim w/Chalk Stitching
  • Truffle Brown, Club Leather Seat Trim
  • Truffle Brown, Club Leather Seat Trim w/Chalk Stitching
  • NATURAL LEATHER INTERIOR

Features and Options

Infotainment

HD Radio
Standard
Not Available
Not Available
Bluetooth Connection
Standard
Standard
Not Available
Hard Disk Drive Media Storage
Standard
Not Available
Not Available
Premium Sound System
Optional
Optional
Not Available
Satellite Radio
Standard
Standard
Not Available
Smart Device Integration
Standard
Standard
Not Available
WiFi Hotspot
Not Available
Standard
Not Available
Auxiliary Audio Input
Standard
Standard
Not Available
MP3 Player
Standard
Standard
Not Available

Interior Trim

Bucket Seats
Standard
Standard
Not Available
Cloth Seats
Optional
Standard
Standard
Leather Seats
Optional
Standard
Standard
Leather Steering Wheel
Standard
Standard
Not Available
Premium Synthetic Seats
Standard
Standard
Standard
Vinyl Seats
Optional
Standard
Standard
Woodgrain Interior Trim
Not Available
Optional
Not Available

Comfort

Navigation System
Standard
Standard
Not Available
Steering Wheel Audio Controls
Standard
Standard
Not Available
Power Mirror(s)
Standard
Standard
Not Available
A/C
Standard
Standard
Not Available
Adaptive Cruise Control
Optional
Optional
Not Available
Automatic Parking
Standard
Not Available
Not Available
Climate Control
Standard
Standard
Not Available
Cooled Front Seat(s)
Optional
Optional
Not Available
Cruise Control
Standard
Standard
Not Available
Hands-Free Liftgate
Optional
Not Available
Not Available
Heated Front Seat(s)
Standard
Standard
Not Available
Heated Steering Wheel
Not Available
Optional
Not Available
Keyless Entry
Standard
Standard
Not Available
Multi-Zone A/C
Standard
Standard
Not Available
Power Driver Seat
Standard
Not Available
Not Available
Power Passenger Seat
Standard
Not Available
Not Available
Remote Trunk Release
Optional
Not Available
Not Available
Seat Memory
Standard
Not Available
Not Available
Universal Garage Door Opener
Standard
Standard
Not Available
Keyless Start
Optional
Standard
Not Available
Telematics
Standard
Not Available
Not Available

Safety

Safety Features

Back-Up Camera
Standard
Standard
Not Available
Rear Parking Aid
Not Available
Standard
Not Available
Blind Spot Monitor
Optional
Optional
Not Available
Lane Departure Warning
Optional
Optional
Not Available
Lane Keeping Assist
Optional
Optional
Not Available
ABS
Standard
Standard
Not Available
Night Vision
Not Available
Optional
Not Available
Tire Pressure Monitor
Standard
Standard
Not Available
Brake Assist
Standard
Standard
Not Available
Stability Control
Standard
Standard
Not Available
Traction Control
Standard
Standard
Not Available

Airbags

Driver Air Bag
Standard
Standard
Not Available
Front Head Air Bag
Standard
Standard
Not Available
Front Side Air Bag
Standard
Standard
Not Available
Knee Air Bag
Standard
Not Available
Not Available
Passenger Air Bag
Standard
Standard
Not Available

Warranty

Warranty Summary

Basic
4 Years / 50,000 Miles
4 Years / 50,000 Miles
4 Years / 50,000 Miles
Corrosion
4 Years / 50,000 Miles
12 Years / Unlimited Miles
10 Years / Unlimited Miles
Drivetrain
4 Years / 50,000 Miles
4 Years / 50,000 Miles
4 Years / 50,000 Miles
Roadside Assistance
4 Years / 50,000 Miles
4 Years / 50,000 Miles
4 Years / 50,000 Miles
Maintenance
N/A
1 Years / 10,000 Miles
N/A
Now Buzzing
Porsche Shootout: 911 GT3 RS Vs. Taycan Turbo Vs. GT3 Cup
Video
Porsche Shootout: 911 GT3 RS Vs. Taycan Turbo Vs. GT3 Cup
Stellantis Will Help Alfa Romeo And Maserati Get Their Mojo Back
Industry News
Stellantis Will Help Alfa Romeo And Maserati Get Their Mojo Back
Corvette Driver Crashes After 120 MPH Street Race
Sports Cars
Corvette Driver Crashes After 120 MPH Street Race
2021 Porsche Taycan Base Model Arrives With RWD And $79,900 Price Tag
Reveal
2021 Porsche Taycan Base Model Arrives With RWD And $79,900 Price Tag
Could Toyota Finally Bring Back The Celica Name?
Scoop
Could Toyota Finally Bring Back The Celica Name?
Ferrari F8 Tributo Gets New Look And 800-HP Upgrade
Tuning
Ferrari F8 Tributo Gets New Look And 800-HP Upgrade
Mercedes-AMG GT Roadster
Best Comparisons
Porsche 911 Carrera Cabriolet
Best Comparisons
Porsche 911 GT2
Best Comparisons
  • Popular Tags
  • Cars
By Make
Acura Alfa Romeo Apollo Automobil Aston Martin Audi Bentley BMW Bugatti Buick Cadillac Caterham Chevrolet Chrysler Dodge Ferrari Fiat Fisker Ford Genesis GMC Hennessey Honda Hyundai Infiniti Ioniq Jaguar Jeep Karma Kia Koenigsegg Lamborghini Land Rover Lexus Lincoln Lotus Lucid Maserati Mazda McLaren Mercedes-Benz Mini Mitsubishi Nissan Pagani Polestar Porsche Ram Rimac Rivian Rolls-Royce smart Spyker Subaru Tesla Toyota Volkswagen Volvo
By Car Type
SUVs Crossovers Sedans Coupes Trucks Sports Cars Wagons Vans Hatchbacks Convertibles Small Cars Luxury Cars Electric Cars Hybrid Cars Future Cars
By Price
Up to $15K $15K - $25K $25K - $35K $35K - $45K $45K - $55K $55K - $75K $75K - $100K $100K - $200K $200K - $300K Above $300K