Mercedes-Benz SL-Class vs. Mercedes-Benz SLK
iSeeCars' unbiased and data-driven comparison of the Mercedes-Benz SL-Class and Mercedes-Benz SLK 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 SL-Class and the Mercedes-Benz SLK.
When we compare the Mercedes-Benz SL-Class's and the Mercedes-Benz SLK's specifications and ratings, the Mercedes-Benz SL-Class has the advantage in the areas of interior volume and base engine power. The Mercedes-Benz SLK has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars, and fuel efficiency. Based on this comparison of the Mercedes-Benz SL-Class's and the Mercedes-Benz SLK's specifications and ratings, the two cars are fairly comparable.
Pricing: A used 2016 Mercedes-Benz SL-Class ranges from $24,983 to $63,123 while a used 2016 Mercedes-Benz SLK is priced between $16,041 to $29,995.
Engine Power and Fuel Efficiency Comparison: For engine performance, the Mercedes-Benz SL-Class’s base engine makes 329 horsepower, and the Mercedes-Benz SLK base engine makes 241 horsepower. The SL-Class is rated to deliver an average of 23 miles per gallon, with a highway range of 535 miles. The SLK is rated to deliver an average of 28 miles per gallon, with a highway range of 592 miles. This gives the Mercedes-Benz SLK the fuel efficiency and maximum range advantage over the Mercedes-Benz SL-Class. Both models use gasoline.
Passenger Space Comparison: The Mercedes-Benz SL-Class has the advantage of offering more interior volume, reflected in more front head room, front shoulder room, front leg room, and cargo space.
New Car Pricing
Asking Price:
-
Starting MSRP:
85050
Category Avg Starting MSRP:
(Luxury Sports Cars)
74424
Category Starting MSRP Range:
(Luxury Sports Cars)
42900 - 145740
New Car Pricing
Asking Price:
-
Starting MSRP:
47000
Category Avg Starting MSRP:
N/A
Category Starting MSRP Range:
N/A
Used Car Pricing
Avg Used Car Price:
40200
Price Range:
24983 - 63123
Category Avg Price:
(Luxury Sports Cars)
49906
Category Avg Price Range:
(Luxury Sports Cars)
22026 - 178025
# Used Cars for Sale Nationally:
26
Avg Mileage of Used Cars for Sale:
43734
# Good or Great Deals:
6
Used Car Pricing
Avg Used Car Price:
23005
Price Range:
16041 - 29995
Category Avg Price:
N/A
Category Avg Price Range:
N/A
# Used Cars for Sale Nationally:
Avg Mileage of Used Cars for Sale:
# Good or Great Deals:
Mercedes-Benz SL-Class Scores & Rankings
Overall Score:
7.9 / 10
Reliability:
7.8 / 10
Retained Value:
8.0 / 10
Safety:
Not available
Mercedes-Benz SLK Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
Not available
Safety:
Not available
iSeeCars Reliability Insights for Mercedes-Benz SL-Class
Remaining Life Expectancy (years):
7.3
Typical Category Remaining Life Expectancy:
(Luxury Sports Cars)
7.3
Category Remaining Life Expectancy Range:
(Luxury Sports Cars)
0.9 - 20.7
Chance of Reaching 200k Miles for a New Car:
0.0
iSeeCars Reliability Insights for Mercedes-Benz SLK
Remaining Life Expectancy (years):
7.4
Typical Category Remaining Life Expectancy:
N/A
Category Remaining Life Expectancy Range:
N/A
Chance of Reaching 200k Miles for a New Car:
0.005
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
4.363796858521822
Typical Category Recalls:
(Luxury Sports Cars)
2.1
Category Range for Recalls:
(Luxury Sports Cars)
0.9 - 7.9
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
8.401413490264481
Typical Category Recalls:
N/A
Category Range for Recalls:
N/A
Mercedes-Benz SL-Class Rankings
Ranking
4 out of / 25Ranking
4 out of / 25Ranking
5 out of / 40Ranking
6 out of / 40Ranking
7 out of / 25Ranking
9 out of / 25Ranking
12 out of / 16Ranking
13 out of / 40Ranking
16 out of / 25Ranking
16 out of / 25Ranking
20 out of / 29Ranking
21 out of / 40Ranking
22 out of / 40Ranking
30 out of / 40Mercedes-Benz SLK Rankings
Available Body Styles
Convertible
Available Body Styles
Convertible
Available Drivetrain Options
Gasoline
Available Drivetrain Options
Gasoline
Mercedes-Benz SL-Class Trim Levels
AMG SL 63, AMG SL 65, SL 400, SL 550
Mercedes-Benz SLK Trim Levels
AMG SLK 55, SLK 300, SLK 350
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 / 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:
329 hp @ 5250 rpm
Torque:
354 foot-lbs @ 1600 rpm
Power-to-Weight Ratio (higher is better):
0.086 hp per pound
Base Drivetrain Specs
Horsepower:
241 hp @ 5550 rpm
Torque:
273 foot-lbs @ 1300 rpm
Power-to-Weight Ratio (higher is better):
0.075 hp per pound
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 / 27 / 23
Range (city/hwy):
396 / 535 miles
Recommended Fuel Type:
Gasoline
Engine Specifications
Engine Size:
2 liters
Engine Configuration:
Inline
Number of Cylinders:
4
Transmission:
Automatic
Standard/Optional Drivetrain Type:
RWD
EPA Fuel Economy
(City/Highway/Combined MPG):
25 / 32 / 28
Range (city/hwy):
463 / 592 miles
Recommended Fuel Type:
Gasoline
Standard/Optional Features
Alloy wheels:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Keyless Entry:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
Standard
Panoramic Sunroof/Moonroof
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Sunroof/Moonroof:
Standard
Voice Recognition:
Standard
Adaptive Cruise Control:
Available
Automatic Parking:
Available
Cooled/Ventilated Seats:
Available
Keyless Ignition:
Available
Massage Seats:
Available
Parking Sensors:
Available
Air Suspension:
N/A
Android Auto:
N/A
Apple CarPlay:
N/A
Bench Seats:
N/A
Captain's seat:
N/A
Front Bench Seats:
N/A
Heated Steering Wheel:
N/A
Internet Radio:
N/A
Power Lift Gate:
N/A
Quad Seats:
N/A
Roof Rack:
N/A
Trailer Hitch:
N/A
Wifi:
N/A
Wireless Smartphone Charging:
N/A
Standard/Optional Features
Alloy wheels:
Standard
Bluetooth:
Standard
Heated Seats
Available
Keyless Entry:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
Standard
Panoramic Sunroof/Moonroof
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Sunroof/Moonroof:
Standard
Voice Recognition:
Available
Adaptive Cruise Control:
Available
Automatic Parking:
N/A
Cooled/Ventilated Seats:
N/A
Keyless Ignition:
Available
Massage Seats:
N/A
Parking Sensors:
Available
Air Suspension:
N/A
Android Auto:
N/A
Apple CarPlay:
N/A
Bench Seats:
N/A
Captain's seat:
N/A
Front Bench Seats:
N/A
Heated Steering Wheel:
N/A
Internet Radio:
N/A
Power Lift Gate:
N/A
Quad Seats:
N/A
Roof Rack:
N/A
Trailer Hitch:
N/A
Wifi:
N/A
Wireless Smartphone Charging:
N/A
Safety Features
Driver Attention Monitoring:
Standard
Forward Collision Warning:
Standard
Backup camera:
Available
Blind Spot Monitoring:
Available
Lane Departure Warning:
Available
Lane Keeping Assist:
Available
360-Degree Camera:
N/A
Pedestrian Detection:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Safety Features
Driver Attention Monitoring:
Standard
Forward Collision Warning:
N/A
Backup camera:
N/A
Blind Spot Monitoring:
N/A
Lane Departure Warning:
N/A
Lane Keeping Assist:
N/A
360-Degree Camera:
N/A
Pedestrian Detection:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Interior Dimensions
Front Head Room:
39.1 inches
Front Leg Room:
42.9 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:
13.5 cubic feet
Overall Interior Volume:
57.8 cubic feet
Interior Dimensions
Front Head Room:
38 inches
Front Leg Room:
42.5 inches
Front Shoulder Room:
52.2 inches
Rear Head Room:
Not yet available
Rear Leg Room:
Not yet available
Rear Shoulder Room:
Not yet available
Cargo Space:
10.1 cubic feet
Overall Interior Volume:
49.0 cubic feet
Exterior Dimensions
Curb Weight:
3836 lbs
Width:
82.6 inches
Height:
51.8 inches
Length:
181.6 inches
Wheelbase:
101.8 inches
Ground Clearance:
Not yet available
Exterior Dimensions
Curb Weight:
3208 lbs
Width:
79 inches
Height:
51.2 inches
Length:
162.8 inches
Wheelbase:
95.7 inches
Ground Clearance:
Not yet available
Standard Wheel/Tire Information
Wheel Size:
18.0 x 8.5 inches
Wheel Type:
aluminum alloy
Tire Size:
P255/40R18
Standard Wheel/Tire Information
Wheel Size:
17.0 x 7.5 inches
Wheel Type:
aluminum alloy
Tire Size:
P225/45R17
Exterior Colors
Black
Jet Black / Magnetite Black Metallic / Obsidian Black Metallic
Blue
Lunar Blue Metallic
Brown
Dolomite Brown Metallic
Gray
Selenite Grey Metallic
Red
designo Cardinal Red Metallic / Mars Red
Silver
Iridium Silver Metallic
White
designo Diamond White Metallic / Polar White
Exterior Colors
Black
Jet Black / Obsidian Black Metallic
Blue
Lunar Blue Metallic
Brown
Not available
Gray
designo Magno Shadow Grey Matte / Indium Grey Metallic / Selenite Grey Metallic
Red
designo Cardinal Red Metallic / Mars Red
Silver
Diamond Silver Metallic / Iridium Silver Metallic
White
designo Diamond White Metallic / Polar White
Interior Colors
Beige
Ginger Beige/Espresso Brown
Black
Black
Brown
Nut Brown/Black
Gray
Crystal Grey/Dark Grey
Red
Bengal Red/Black
White
Porcelain/Black
Interior Colors
Beige
Sahara Beige
Black
Black
Brown
Brown/Black
Gray
Ash/Black
Red
Bengal Red/Black
White
Not available
