2021 BMW 8 Series vs. 2020 Mercedes-Benz SL-Class
In comparing the 2021 BMW 8 Series's and the 2020 Mercedes-Benz SL-Class's specifications and ratings, the 2021 BMW 8 Series has the advantage in the areas of typical lower range of pricing for used cars, and fuel efficiency and interior volume. The 2020 Mercedes-Benz SL-Class has the advantage in the areas of resale value and base engine power. Based on this comparison of the 2021 BMW 8 Series's and the 2020 Mercedes-Benz SL-Class's specifications and ratings, the 2021 BMW 8 Series is a better car than the 2020 Mercedes-Benz SL-Class.
2021 BMW 8 Series vs. 2020 Mercedes-Benz SL-Class Pricing
A used 2021 BMW 8 Series ranges from $57,818 to $77,919 while a used 2020 Mercedes-Benz SL-Class is priced between $61,965 to $90,822.
2021 BMW 8 Series vs. 2020 Mercedes-Benz SL-Class Resale/Retained Value
Looking at the 5-year depreciation rate for both models, the 2021 BMW 8 Series loses 55.7 percent of its value and the 2020 Mercedes-Benz SL-Class loses 47.2 percent of its value. This means the 2020 Mercedes-Benz SL-Class retains 8.4 percentage points more of its value and has the advantage of higher resale value versus the 2021 BMW 8 Series.
Engine Power and Fuel Efficiency Comparison
For engine performance, the 2021 BMW 8 Series’s base engine makes 335 horsepower, and the 2020 Mercedes-Benz SL-Class base engine makes 362 horsepower. The 8 Series is rated to deliver an average of 25 miles per gallon, with a highway range of 522 miles. The SL-Class is rated to deliver an average of 22 miles per gallon, with a highway range of 554 miles.This gives the 2021 BMW 8 Series the advantage in fuel efficiency and the 2020 Mercedes-Benz SL-Class the advantage in maximum range. Both models use premium unleaded.
Passenger Space Comparison
The 2021 BMW 8 Series, a midsize car, has the advantage of offering more interior volume, reflected in more front shoulder room and cargo space. The 2020 Mercedes-Benz SL-Class, a sports car, has the advantage in the area of front leg room. The 2021 BMW 8 Series and 2020 Mercedes-Benz SL-Class are comparable in regards to front head room.
Pricing
New Asking Price:
-
Used Asking Price:
57818 - 77919
5-Year Depreciation (lower is better):
0.556501
Pricing
New Asking Price:
-
Used Asking Price:
61965 - 90822
5-Year Depreciation (lower is better):
0.472461
BMW 8 Series Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
7.1 / 10
Safety:
Not available
Mercedes-Benz SL-Class Scores & Rankings
Overall Score:
7.370637 / 10
Reliability:
7.941273 / 10
Retained Value:
6.8 / 10
Safety:
Not available
BMW 8 Series Rankings
Ranking
3 out of / 29Ranking
6 out of / 29Ranking
7 out of / 29Ranking
16 out of / 20Ranking
19 out of / 29Mercedes-Benz SL-Class Rankings
Ranking
1 out of / 40Ranking
1 out of / 26Ranking
7 out of / 40Ranking
7 out of / 26Ranking
7 out of / 26Ranking
8 out of / 19Ranking
9 out of / 26Ranking
12 out of / 23Ranking
14 out of / 40Ranking
14 out of / 18Ranking
16 out of / 40Ranking
18 out of / 26Ranking
20 out of / 30Ranking
31 out of / 40Available Body Styles
Convertible, Coupe, Sedan
Available Body Styles
Convertible
Available Drivetrain Options
Gasoline
Available Drivetrain Options
Gasoline
2021 BMW 8 Series Trim Levels
Not yet available
2020 Mercedes-Benz SL-Class Trim Levels
SL 450, SL 550
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
IIHS Safety Rating:
Not yet available
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
IIHS Safety Rating:
Not yet available
Base Drivetrain Specifications
Horsepower:
335 hp @ 5000 rpm
Torque:
368 foot-lbs @ 1600 rpm
Power-to-Weight Ratio (higher is better):
0.079 hp per pound
Base Drivetrain Specifications
Horsepower:
362 hp @ 5500 rpm
Torque:
369 foot-lbs @ 2000 rpm
Power-to-Weight Ratio (higher is better):
0.095 hp per pound
Engine Specifications
Engine Size:
3 liters
Engine Configuration:
Inline
Number of Cylinders:
6
Transmission:
Automatic
Standard/Optional Drivetrain Type:
RWD / AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
22 / 29 / 25
Range (city/hwy):
396 / 522 miles
Recommended Fuel Type:
Premium Unleaded
Engine Specifications
Engine Size:
3 liters
Engine Configuration:
V
Number of Cylinders:
6
Transmission:
Automatic
Standard/Optional Drivetrain Type:
RWD
EPA Fuel Economy
(City/Highway/Combined MPG):
20 / 28 / 22
Range (city/hwy):
396 / 554 miles
Recommended Fuel Type:
Premium Unleaded
Standard/Optional Features
Android Auto:
Standard
Apple Car Play:
Standard
Heated Seats
Standard
Heated Steering Wheel:
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Sunroof/Moonroof:
Standard
Wireless Smartphone Charging:
Standard
Adaptive Cruise Control:
Available
Cooled/Ventilated Seats:
Available
Standard/Optional Features
Android Auto:
Standard
Apple Car Play:
Standard
Heated Seats
Standard
Heated Steering Wheel:
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Sunroof/Moonroof:
Standard
Wireless Smartphone Charging:
N/A
Adaptive Cruise Control:
Available
Cooled/Ventilated Seats:
Available
Safety Equipment
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 Equipment
Driver Attention Monitoring:
Standard
Forward Collision Warning:
Standard
Lane Departure Warning:
Available
Pedestrian Detection:
N/A
360-Degree Camera:
N/A
Blind Spot Monitoring:
Available
Lane Keeping Assist:
Available
Rear Cross-Traffic Alert:
Available
Rear Seat Reminder:
N/A
Interior Dimensions
Front Head Room:
39.1 inches
Front Leg Room:
42.1 inches
Front Shoulder Room:
57.2 inches
Rear Head Room:
37 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:
39.1 inches
Front Leg Room:
53.6 inches
Front Shoulder Room:
55.5 inches
Rear Head Room:
Not yet available
Rear Leg Room:
Not yet available
Rear Shoulder Room:
Not yet available
Cargo Space:
8.5 cubic feet
Overall Interior Volume:
50.5 cubic feet
Exterior Dimensions
Curb Weight:
4262 lbs
Width:
84.1 inches
Height:
55.2 inches
Length:
200.2 inches
Wheelbase:
119 inches
Ground Clearance:
4.8 inches
Exterior Dimensions
Curb Weight:
3825 lbs
Width:
82.6 inches
Height:
51.2 inches
Length:
182.3 inches
Wheelbase:
101.8 inches
Ground Clearance:
3.7 inches
Standard Wheel/Tire Information
Wheel Size:
18.0 x 8.0 inches
Wheel Type:
aluminum alloy
Tire Size:
245/45R18
Standard Wheel/Tire Information
Wheel Size:
19.0 x 8.5 inches
Wheel Type:
aluminum alloy
Tire Size:
255/35R19