BMW M8 Competition vs. Mercedes-Benz AMG GT 63 S
iSeeCars' unbiased and data-driven comparison of the BMW M8 Competition and Mercedes-Benz AMG GT 63 S 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 Mercedes-Benz AMG GT 63 S.
When comparing the BMW M8 Competition's and the Mercedes-Benz AMG GT 63 S's specifications and ratings, the BMW M8 Competition has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars, and interior volume. The Mercedes-Benz AMG GT 63 S has the advantage in the areas of resale value and base engine power. The BMW M8 Competition and Mercedes-Benz AMG GT 63 S have the same fuel efficiency. Based on this comparison of the BMW M8 Competition's and the Mercedes-Benz AMG GT 63 S's specifications and ratings, the two cars are fairly comparable.
Pricing: A used 2023 BMW M8 Competition ranges from $98,987 to $133,841 while a used 2023 Mercedes-Benz AMG GT 63 S is priced between $168,895 to $206,310.
Resale/Retained Value: Looking at the 5-year depreciation rate for both models, the BMW M8 Competition loses 55.8 percent of its value and the Mercedes-Benz AMG GT 63 S loses 41.1 percent of its value. This means the Mercedes-Benz AMG GT 63 S retains 14.7 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 Mercedes-Benz AMG GT 63 S base engine makes 630 horsepower. Both the Competition and the 63 S are rated to deliver an average of 17 miles per gallon, with highway ranges of 442 and 443 miles respectively. Both models use premium unleaded.
Passenger Space Comparison: The BMW M8 Competition, a midsize car, has the advantage of offering more interior volume, reflected in more cargo space. The Mercedes-Benz AMG GT 63 S, a subcompact car, has the advantage in the areas of front head room, front shoulder room, rear head room and rear shoulder room.
New Car Pricing
Asking Price:
-
Starting MSRP:
$134,100
Category Avg Starting MSRP:
(Luxury Midsize Cars)
$71,383
Category Starting MSRP Range:
(Luxury Midsize Cars)
$38,195 - $134,100
New Car Pricing
Asking Price:
$198,610 - $221,166
Starting MSRP:
$170,350
Category Avg Starting MSRP:
(Luxury Subcompact Cars)
$56,230
Category Starting MSRP Range:
(Luxury Subcompact Cars)
$38,200 - $95,900
Used Car Pricing
Avg Used Car Price:
$114,802
Price Range:
$98,987 - $133,841
Category Avg Price:
(Luxury Midsize Cars)
$71,027
Category Avg Price Range:
(Luxury Midsize Cars)
$39,610 - $126,923
# Used Cars for Sale Nationally:
38
Avg Mileage of Used Cars for Sale:
12,915
# Good or Great Deals:
13
Used Car Pricing
Avg Used Car Price:
$189,255
Price Range:
$168,895 - $206,310
Category Avg Price:
(Luxury Subcompact Cars)
$63,792
Category Avg Price Range:
(Luxury Subcompact Cars)
$42,548 - $121,833
# Used Cars for Sale Nationally:
Avg Mileage of Used Cars for Sale:
# Good or Great Deals:
BMW M8 Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
7.0 / 10
Safety:
Not available
Mercedes-Benz AMG GT Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
7.9 / 10
Safety:
Not available
iSeeCars Reliability Insights for BMW M8 Competition
Remaining Life Expectancy (years):
Typical Category Remaining Life Expectancy:
(Luxury Midsize Cars)
10
Category Remaining Life Expectancy Range:
(Luxury Midsize Cars)
7 - 13.6
Chance of Reaching 200k Miles for a New Car:
iSeeCars Reliability Insights for Mercedes-Benz AMG GT 63 S
Remaining Life Expectancy (years):
Typical Category Remaining Life Expectancy:
(Luxury Subcompact Cars)
10.2
Category Remaining Life Expectancy Range:
(Luxury Subcompact Cars)
10.1 - 12
Chance of Reaching 200k Miles for a New Car:
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
10.5
Typical Category Recalls:
(Luxury Midsize Cars)
2.5
Category Range for Recalls:
(Luxury Midsize Cars)
0.6 - 28.7
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
2.5
Typical Category Recalls:
(Luxury Subcompact Cars)
2.6
Category Range for Recalls:
(Luxury Subcompact Cars)
1.7 - 11
BMW M8 Rankings
Ranking
2 out of / 29Ranking
2 out of / 29Ranking
3 out of / 29Ranking
15 out of / 29Ranking
19 out of / 29Ranking
20 out of / 20Mercedes-Benz AMG GT Rankings
Ranking
1 out of / 36Ranking
10 out of / 36Ranking
31 out of / 31Available Body Styles
Convertible, Coupe, Sedan
Available Body Styles
Sedan
Available Drivetrain Options
Gasoline
Available Drivetrain Options
Gasoline
Other BMW M8 Trim Levels
Not yet available
Other Mercedes-Benz AMG GT Trim Levels
43, 53, 63
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):
0.138 hp per pound
Base Drivetrain Specs
Horsepower:
630 hp @ 5500 rpm
Torque:
664 foot-lbs @ 2500 rpm
Power-to-Weight Ratio (higher is better):
0.132 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:
V
Number of Cylinders:
8
Transmission:
Automatic
Standard/Optional Drivetrain Type:
AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
15 / 21 / 17
Range (city/hwy):
317 / 443 miles
Recommended Fuel Type:
Premium Unleaded
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:
Available
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:
Standard
Parking Sensors:
Standard
Air Suspension:
N/A
Captain's seat:
N/A
Front Bench Seats:
N/A
Massage Seats:
Available
Panoramic Sunroof/Moonroof
Available
Quad Seats:
Standard
Roof Rack:
N/A
Sunroof/Moonroof:
Standard
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:
N/A
Driver Attention Monitoring:
Standard
Forward Collision Warning:
Standard
Lane Departure Warning:
N/A
Pedestrian Detection:
Standard
360-Degree Camera:
Standard
Blind Spot Monitoring:
Standard
Lane Keeping Assist:
N/A
Rear Cross-Traffic Alert:
Standard
Rear Seat Reminder:
N/A
Interior Dimensions
Front Head Room:
40.6 inches
Front Leg Room:
42.1 inches
Front Shoulder Room:
57.1 inches
Rear Head Room:
37.1 inches
Rear Leg Room:
36.6 inches
Rear Shoulder Room:
54.6 inches
Cargo Space:
15.5 cubic feet
Overall Interior Volume:
100.0 cubic feet
Interior Dimensions
Front Head Room:
40.8 inches
Front Leg Room:
Not yet available
Front Shoulder Room:
57.8 inches
Rear Head Room:
38.2 inches
Rear Leg Room:
Not yet available
Rear Shoulder Room:
57.2 inches
Cargo Space:
12.7 cubic feet
Overall Interior Volume:
96.0 cubic feet
Exterior Dimensions
Curb Weight:
4480 lbs
Width:
84.1 inches
Height:
55.9 inches
Length:
200.9 inches
Wheelbase:
119.2 inches
Ground Clearance:
5.1 inches
Exterior Dimensions
Curb Weight:
4784 lbs
Width:
81.5 inches
Height:
53.5 inches
Length:
185.2 inches
Wheelbase:
106.3 inches
Ground Clearance:
4.8 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:
265/40R20
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
