BMW M8 Competition vs. Porsche 911 GT3
iSeeCars' unbiased and data-driven comparison of the BMW M8 Competition and Porsche 911 GT3 contrasts the two cars across a broad spectrum of vehicle specifications to determine which car is better. In addition to comparing pricing and specs, iSeeCars uses all the ratings, rankings, and insights from its comprehensive analyses of each vehicle model, including calculations of reliability, safety, depreciation, value retention, and the vehicle's projected lifetime recalls (based on analyzing over 25 billion data points). This in-depth evaluation is used to identify which vehicle represents a better overall choice for shoppers who are considering both the BMW M8 Competition and the Porsche 911 GT3.
In comparing the BMW M8 Competition's and the Porsche 911 GT3's specifications and ratings, the BMW M8 Competition has the advantage in the areas of new vehicle base pricing and base engine power. The Porsche 911 GT3 has the advantage in the area of resale value. Based on this comparison of the BMW M8 Competition's and the Porsche 911 GT3's specifications and ratings, the BMW M8 Competition is a better car than the Porsche 911 GT3.
Pricing: For a new model, the BMW M8 Competition's price is between $142,860 and $171,533, with the Porsche 911 GT3 priced between $252,027 and $317,839.
Resale/Retained Value: Looking at the 5-year depreciation rate for both models, the BMW M8 Competition loses 51.7 percent of its value and the Porsche 911 GT3 loses 17 percent of its value. This means the Porsche 911 GT3 retains 34.7 percentage points more of its value and has the advantage of higher resale value versus the BMW M8 Competition.
Engine Power and Fuel Efficiency Comparison: For engine performance, the BMW M8 Competition’s base engine makes 617 horsepower, and the Porsche 911 GT3 base engine makes 502 horsepower.
New Car Pricing
Asking Price:
142860 - 171533
Starting MSRP:
138800
Category Avg Starting MSRP:
(Luxury Sports Cars)
90928
Category Starting MSRP Range:
(Luxury Sports Cars)
54500 - 150000
New Car Pricing
Asking Price:
252027 - 317839
Starting MSRP:
222500
Category Avg Starting MSRP:
(Luxury Sports Cars)
90928
Category Starting MSRP Range:
(Luxury Sports Cars)
54500 - 150000
Used Car Pricing
Avg Used Car Price:
132709
Price Range:
116969 - 154487
Category Avg Price:
(Luxury Sports Cars)
121269
Category Avg Price Range:
(Luxury Sports Cars)
60394 - 258844
# Used Cars for Sale Nationally:
103
Avg Mileage of Used Cars for Sale:
# Good or Great Deals:
0
Used Car Pricing
Avg Used Car Price:
Price Range:
-
Category Avg Price:
(Luxury Sports Cars)
121269
Category Avg Price Range:
(Luxury Sports Cars)
60394 - 258844
# Used Cars for Sale Nationally:
Avg Mileage of Used Cars for Sale:
# Good or Great Deals:
5-year Depreciation
Depreciation $:
71874
Depreciation %:
0.51782622
Resale Value $:
66926
Residual Value %:
0.48217378
Typical Category Depreciation %:
(Luxury Sports Cars)
0.27961642
Category Depreciation Range:
(Luxury Sports Cars)
0.17060832 - 0.55051463
5-year Depreciation
Depreciation $:
37960
Depreciation %:
0.17060832
Resale Value $:
184540
Residual Value %:
0.82939168
Typical Category Depreciation %:
(Luxury Sports Cars)
0.27961642
Category Depreciation Range:
(Luxury Sports Cars)
0.17060832 - 0.55051463
BMW M8 Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
7.7 / 10
Safety:
Not available
Porsche 911 Scores & Rankings
Overall Score:
9.0 / 10
Reliability:
8.1 / 10
Retained Value:
9.999999 / 10
Safety:
Not available
iSeeCars Reliability Insights for BMW M8 Competition
Avg Life Expectancy (years):
Typical Category Life Expectancy:
(Luxury Sports Cars)
20.2
Category Life Expectancy Range:
(Luxury Sports Cars)
13.0 - 29.7
Chance of Reaching 200k Miles for a New Car:
iSeeCars Reliability Insights for Porsche 911 GT3
Avg Life Expectancy (years):
18.5
Typical Category Life Expectancy:
(Luxury Sports Cars)
20.2
Category Life Expectancy Range:
(Luxury Sports Cars)
13.0 - 29.7
Chance of Reaching 200k Miles for a New Car:
0.0
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
6.981578871868141
Typical Category Recalls:
(Luxury Sports Cars)
3.9
Category Range for Recalls:
(Luxury Sports Cars)
0.9 - 7.2
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
7.16068364821227
Typical Category Recalls:
(Luxury Sports Cars)
3.9
Category Range for Recalls:
(Luxury Sports Cars)
0.9 - 7.2
BMW M8 Rankings
Ranking
6 out of / 40Ranking
8 out of / 40Ranking
8 out of / 40Ranking
10 out of / 40Ranking
24 out of / 29Ranking
38 out of / 40Porsche 911 Rankings
Ranking
1 out of / 40Ranking
2 out of / 40Ranking
2 out of / 8Ranking
4 out of / 40Ranking
5 out of / 40Ranking
21 out of / 29Available Body Styles
Convertible, Coupe, Sedan
Available Body Styles
Coupe
Available Drivetrain Options
Gasoline
Available Drivetrain Options
Gasoline
Other BMW M8 Trim Levels
Not yet available
Other Porsche 911 Trim Levels
Carrera, Carrera S, Carrera T, GT3 RS, GT3 Touring, Turbo, Turbo 50 Years, Turbo S
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 50000 miles
Warranty, Powertrain:
4 years / 50000 miles
Warranty, Roadside Assistance:
4 years
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 50000 miles
Warranty, Powertrain:
4 years / 50000 miles
Warranty, Roadside Assistance:
4 years / 50000 miles
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
2025 NHTSA Overall Rating:
Not yet available
2025 NHTSA Front Crash Overall Rating:
Not yet available
2025 NHTSA Side Crash Overall Rating:
Not yet available
2025 NHTSA Rollover Rating:
Not yet available
IIHS Safety Rating:
Not yet available
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
2025 NHTSA Overall Rating:
Not yet available
2025 NHTSA Front Crash Overall Rating:
Not yet available
2025 NHTSA Side Crash Overall Rating:
Not yet available
2025 NHTSA Rollover Rating:
Not yet available
IIHS Safety Rating:
Not yet available
Base Drivetrain Specs
Horsepower:
617 hp @ 6000 rpm
Torque:
553 foot-lbs @ 1800 rpm
Power-to-Weight Ratio (higher is better):
0.144 hp per pound
Base Drivetrain Specs
Horsepower:
502 hp @ 8400 rpm
Torque:
331 foot-lbs @ 6100 rpm
Power-to-Weight Ratio (higher is better):
0.153 hp per pound
Engine Specifications
Engine Size:
4.4 liters
Engine Configuration:
V
Number of Cylinders:
8
Transmission:
Automatic
Standard/Optional Drivetrain Type:
AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
15 / 22 / 17
Range (city/hwy):
302 / 442 miles
Recommended Fuel Type:
Premium Unleaded
Engine Specifications
Engine Size:
4 liters
Engine Configuration:
Flat/Horizontally Opposed
Number of Cylinders:
6
Transmission:
Automatic
Standard/Optional Drivetrain Type:
RWD
EPA Fuel Economy
(City/Highway/Combined MPG):
Not yet available
Range (city/hwy):
Not yet available
Recommended Fuel Type:
Not yet available
Standard/Optional Features
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Cooled/Ventilated Seats:
Standard
Heated Seats
Standard
Heated Steering Wheel:
Standard
Internet Radio:
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
Standard
Power Lift Gate:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Voice Recognition:
Standard
Wifi:
Standard
Wireless Smartphone Charging:
Standard
Adaptive Cruise Control:
Available
Automatic Parking:
Available
Parking Sensors:
Available
Air Suspension:
N/A
Captain's seat:
N/A
Front Bench Seats:
N/A
Massage Seats:
N/A
Panoramic Sunroof/Moonroof
N/A
Quad Seats:
N/A
Roof Rack:
N/A
Sunroof/Moonroof:
N/A
Trailer Hitch:
N/A
Standard/Optional Features
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Bench Seats:
N/A
Bluetooth:
Standard
Cooled/Ventilated Seats:
N/A
Heated Seats
Standard
Heated Steering Wheel:
N/A
Internet Radio:
Standard
Keyless Entry:
Standard
Keyless Ignition:
N/A
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
Standard
Power Lift Gate:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Voice Recognition:
Standard
Wifi:
Standard
Wireless Smartphone Charging:
Standard
Adaptive Cruise Control:
N/A
Automatic Parking:
N/A
Parking Sensors:
Available
Air Suspension:
N/A
Captain's seat:
N/A
Front Bench Seats:
N/A
Massage Seats:
N/A
Panoramic Sunroof/Moonroof
N/A
Quad Seats:
N/A
Roof Rack:
N/A
Sunroof/Moonroof:
N/A
Trailer Hitch:
N/A
Safety Features
Backup camera:
Standard
Driver Attention Monitoring:
Standard
Forward Collision Warning:
Standard
Lane Departure Warning:
Standard
Pedestrian Detection:
Standard
360-Degree Camera:
N/A
Blind Spot Monitoring:
N/A
Lane Keeping Assist:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Safety Features
Backup camera:
Standard
Driver Attention Monitoring:
N/A
Forward Collision Warning:
Standard
Lane Departure Warning:
N/A
Pedestrian Detection:
Standard
360-Degree Camera:
N/A
Blind Spot Monitoring:
N/A
Lane Keeping Assist:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Interior Dimensions
Front Head Room:
38.9 inches
Front Leg Room:
42.1 inches
Front Shoulder Room:
57.2 inches
Rear Head Room:
33.6 inches
Rear Leg Room:
29.5 inches
Rear Shoulder Room:
46.9 inches
Cargo Space:
14.8 cubic feet
Overall Interior Volume:
81.0 cubic feet
Interior Dimensions
Front Head Room:
Not yet available
Front Leg Room:
Not yet available
Front Shoulder Room:
Not yet available
Rear Head Room:
Not yet available
Rear Leg Room:
Not yet available
Rear Shoulder Room:
Not yet available
Cargo Space:
4.8 cubic feet
Overall Interior Volume:
Not yet available
Exterior Dimensions
Curb Weight:
4295 lbs
Width:
84.1 inches
Height:
53.6 inches
Length:
191.8 inches
Wheelbase:
111.3 inches
Ground Clearance:
4.8 inches
Exterior Dimensions
Curb Weight:
3278 lbs
Width:
80 inches
Height:
50.4 inches
Length:
179.9 inches
Wheelbase:
96.7 inches
Ground Clearance:
3 inches
Standard Wheel/Tire Information
Wheel Size:
20.0 x 9.5 inches
Wheel Type:
painted aluminum alloy
Tire Size:
275/35R20
Standard Wheel/Tire Information
Wheel Size:
20.0 x 9.5 inches
Wheel Type:
painted aluminum alloy
Tire Size:
255/35ZR20
Exterior Colors
Black
Black Sapphire Metallic
Blue
Frozen Tanzanite Blue Metallic / Marina Bay Blue Metallic / Tanzanite Blue II Metallic
Gray
Brooklyn Grey Metallic / Dravit Grey Metallic / Frozen Pure Grey Metallic / Skyscraper Grey Metallic
Green
Isle of Man Green Metallic
Red
Aventurin Red Metallic
White
Alpine White
Exterior Colors
Black
Not available
Blue
Not available
Gray
Not available
Green
Not available
Red
Not available
White
Not available
Interior Colors
Beige
Midrand Beige
Black
Black / Black/Midrand Beige / Black/Sakhir Orange
Brown
Taruma Brown
Gray
Silverstone
Orange
Sakhir Orange/Black
White
Ivory White/Night Blue / Ivory White/Tartufo
Interior Colors
Beige
Not available
Black
Not available
Brown
Not available
Gray
Not available
Orange
Not available
White
Not available
