Mercedes-Benz SLS AMG vs. Audi R8
iSeeCars' unbiased and data-driven comparison of the Mercedes-Benz SLS AMG and Audi R8 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 Mercedes-Benz SLS AMG and the Audi R8.
When we compare the Mercedes-Benz SLS AMG's and the Audi R8's specifications and ratings, the Mercedes-Benz SLS AMG has the advantage in the areas of fuel efficiency and base engine power. Based on this comparison of the Mercedes-Benz SLS AMG's and the Audi R8's specifications and ratings, the Mercedes-Benz SLS AMG is a better car than the Audi R8.
Engine Power and Fuel Efficiency Comparison: For engine performance, the Mercedes-Benz SLS AMG’s base engine makes 583 horsepower, and the Audi R8 base engine makes 430 horsepower. The SLS AMG is rated to deliver an average of 15 miles per gallon, with a highway range of 428 miles. The R8 is rated to deliver an average of 14 miles per gallon, with a highway range of 422 miles. This gives the Mercedes-Benz SLS AMG the fuel efficiency and maximum range advantage over the Audi R8. Both models use gasoline.
New Car Pricing
Asking Price:
-
Starting MSRP:
$228,080
Category Avg Starting MSRP:
N/A
Category Starting MSRP Range:
N/A
New Car Pricing
Asking Price:
-
Starting MSRP:
$129,400
Category Avg Starting MSRP:
(Luxury Sports Cars)
$76,817
Category Starting MSRP Range:
(Luxury Sports Cars)
$40,350 - $145,740
Used Car Pricing
Avg Used Car Price:
Price Range:
-
Category Avg Price:
N/A
Category Avg Price Range:
N/A
# Used Cars for Sale Nationally:
3
Avg Mileage of Used Cars for Sale:
6,474
# Good or Great Deals:
0
Used Car Pricing
Avg Used Car Price:
$99,986
Price Range:
$71,502 - $129,046
Category Avg Price:
(Luxury Sports Cars)
$49,768
Category Avg Price Range:
(Luxury Sports Cars)
$21,044 - $112,782
# Used Cars for Sale Nationally:
11
Avg Mileage of Used Cars for Sale:
24,421
# Good or Great Deals:
3
Mercedes-Benz SLS AMG Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
Not available
Safety:
Not available
Audi R8 Scores & Rankings
Overall Score:
7.6 / 10
Reliability:
7.5 / 10
Retained Value:
7.7 / 10
Safety:
Not available
iSeeCars Reliability Insights for Mercedes-Benz SLS AMG
Remaining Life Expectancy (years):
Typical Category Remaining Life Expectancy:
N/A
Category Remaining Life Expectancy Range:
N/A
Chance of Reaching 200k Miles for a New Car:
iSeeCars Reliability Insights for Audi R8
Remaining Life Expectancy (years):
Typical Category Remaining Life Expectancy:
(Luxury Sports Cars)
3.5
Category Remaining Life Expectancy Range:
(Luxury Sports Cars)
1.1 - 8.2
Chance of Reaching 200k Miles for a New Car:
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
1.5
Typical Category Recalls:
N/A
Category Range for Recalls:
N/A
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
1.1
Typical Category Recalls:
(Luxury Sports Cars)
1.4
Category Range for Recalls:
(Luxury Sports Cars)
0.8 - 8.8
Mercedes-Benz SLS AMG Rankings
Not yet available
Audi R8 Rankings
Ranking
1 out of / 4Ranking
1 out of / 2Ranking
5 out of / 27Ranking
8 out of / 41Ranking
8 out of / 27Ranking
9 out of / 41Ranking
9 out of / 27Ranking
11 out of / 27Ranking
12 out of / 27Ranking
15 out of / 27Ranking
17 out of / 19Ranking
18 out of / 41Ranking
19 out of / 41Ranking
20 out of / 41Ranking
25 out of / 41Ranking
29 out of / 32Available Body Styles
Convertible, Coupe
Available Body Styles
Convertible, Coupe
Available Drivetrain Options
Gasoline
Available Drivetrain Options
Gasoline
Mercedes-Benz SLS AMG Trim Levels
GT Final Edition
Audi R8 Trim Levels
4.2 quattro Spyder, 5.2 quattro Carbon Spyder, 5.2 quattro Spyder, 4.2 quattro, 5.2 quattro
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 50000 miles
Warranty, Powertrain:
4 years / 50000 miles
Warranty, Roadside Assistance:
4 years / 50000 miles
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 50000 miles
Warranty, Powertrain:
4 years / 50000 miles
Warranty, Roadside Assistance:
4 years
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:
583 hp @ 6800 rpm
Torque:
479 foot-lbs @ 4750 rpm
Power-to-Weight Ratio (higher is better):
0.159 hp per pound
Base Drivetrain Specs
Horsepower:
430 hp @ 7900 rpm
Torque:
317 foot-lbs @ 4500 rpm
Power-to-Weight Ratio (higher is better):
0.115 hp per pound
Engine Specifications
Engine Size:
6.3 liters
Engine Configuration:
V
Number of Cylinders:
8
Transmission:
Automatic
Standard/Optional Drivetrain Type:
RWD
EPA Fuel Economy
(City/Highway/Combined MPG):
13 / 19 / 15
Range (city/hwy):
293 / 428 miles
Recommended Fuel Type:
Gasoline
Engine Specifications
Engine Size:
4.2 liters
Engine Configuration:
V
Number of Cylinders:
8
Transmission:
Manual
Standard/Optional Drivetrain Type:
AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
11 / 20 / 14
Range (city/hwy):
232 / 422 miles
Recommended Fuel Type:
Gasoline
Standard/Optional Features
Adaptive Cruise Control:
Standard
Alloy wheels:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
Standard
Parking Sensors:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Voice Recognition:
Standard
Air Suspension:
N/A
Android Auto:
N/A
Apple CarPlay:
N/A
Automatic Parking:
N/A
Bench Seats:
N/A
Captain's seat:
N/A
Cooled/Ventilated Seats:
N/A
Front Bench Seats:
N/A
Heated Steering Wheel:
N/A
Internet Radio:
N/A
Massage Seats:
N/A
Panoramic Sunroof/Moonroof
N/A
Power Lift Gate:
N/A
Quad Seats:
N/A
Roof Rack:
N/A
Sunroof/Moonroof:
N/A
Trailer Hitch:
N/A
Wifi:
N/A
Wireless Smartphone Charging:
N/A
Standard/Optional Features
Adaptive Cruise Control:
N/A
Alloy wheels:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Keyless Entry:
Standard
Keyless Ignition:
N/A
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
N/A
Parking Sensors:
Available
Power outlet:
Standard
Roadside assistance:
N/A
Satellite radio:
Standard
Voice Recognition:
Standard
Air Suspension:
N/A
Android Auto:
N/A
Apple CarPlay:
N/A
Automatic Parking:
N/A
Bench Seats:
N/A
Captain's seat:
N/A
Cooled/Ventilated Seats:
N/A
Front Bench Seats:
N/A
Heated Steering Wheel:
N/A
Internet Radio:
N/A
Massage Seats:
N/A
Panoramic Sunroof/Moonroof
N/A
Power Lift Gate:
N/A
Quad Seats:
N/A
Roof Rack:
N/A
Sunroof/Moonroof:
N/A
Trailer Hitch:
N/A
Wifi:
N/A
Wireless Smartphone Charging:
N/A
Safety Features
Backup camera:
Standard
Blind Spot Monitoring:
Standard
Driver Attention Monitoring:
Standard
360-Degree Camera:
N/A
Forward Collision Warning:
N/A
Lane Departure Warning:
N/A
Lane Keeping Assist:
N/A
Pedestrian Detection:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Safety Features
Backup camera:
Available
Blind Spot Monitoring:
N/A
Driver Attention Monitoring:
N/A
360-Degree Camera:
N/A
Forward Collision Warning:
N/A
Lane Departure Warning:
N/A
Lane Keeping Assist:
N/A
Pedestrian Detection:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Interior Dimensions
Front Head Room:
41.7 inches
Front Leg Room:
39.1 inches
Front Shoulder Room:
58.4 inches
Rear Head Room:
Not yet available
Rear Leg Room:
Not yet available
Rear Shoulder Room:
Not yet available
Cargo Space:
6.1 cubic feet
Overall Interior Volume:
Not yet available
Interior Dimensions
Front Head Room:
37.5 inches
Front Leg Room:
41 inches
Front Shoulder Room:
54.8 inches
Rear Head Room:
Not yet available
Rear Leg Room:
Not yet available
Rear Shoulder Room:
Not yet available
Cargo Space:
3.5 cubic feet
Overall Interior Volume:
Not yet available
Exterior Dimensions
Curb Weight:
3661 lbs
Width:
81.8 inches
Height:
49.7 inches
Length:
182.6 inches
Wheelbase:
105.5 inches
Ground Clearance:
Not yet available
Exterior Dimensions
Curb Weight:
3737 lbs
Width:
79.9 inches
Height:
49 inches
Length:
174.4 inches
Wheelbase:
104.3 inches
Ground Clearance:
4.3 inches
Standard Wheel/Tire Information
Wheel Size:
19.0 x 9.5 inches
Wheel Type:
aluminum alloy
Tire Size:
265/35R19
Standard Wheel/Tire Information
Wheel Size:
19.0 x 8.5 inches
Wheel Type:
aluminum alloy
Tire Size:
P235/35R19
Exterior Colors
Black
Obsidian Black Metallic
Gray
AMG Imola Grey
Red
Mars Red
Silver
Iridium Silver Metallic
White
designo Mystic White II
Blue
Not available
Brown
Not available
Orange
Not available
Exterior Colors
Black
Mythos Black Metallic / Panther Black Crystal Effect / Phantom Black Pearl Effect
Gray
Daytona Gray Pearl Effect / Florett Silver Metallic / Suzuka Gray Metallic
Red
Brilliant Red
Silver
Ice Silver Metallic
White
Ibis White
Blue
Sepang Blue Pearl Effect
Brown
Teak Brown Metallic
Orange
Samoa Orange Metallic
Interior Colors
Black
designo Black with Silver Diamond Stitching
Beige
Not available
Brown
Not available
Gray
Not available
Red
Not available
Interior Colors
Black
Black / Black with Dark Silver Stitching / Black with Luxor Beige Stitching / Black with Madras Orange Stitching / Black with Nougat Brown Stitching / Black with Red Stitching
Beige
Luxor Beige
Brown
Nougat Brown
Gray
Lunar Silver / Titanium Gray / Titanium Gray with Steel Gray Stitching
Red
Red
