Used 2018 Mercedes-Benz SL-Class for SaleNationwide
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2018
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Iridium Silver Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Bengal Red/Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 29,367
- Stock #:
- 11270
- VIN:
- WDDJK6GAXJF053275

2018 Mercedes-Benz SL-Class
SL 450
29,367 mi
$43,900
- Year:
- 2018
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 71,407
- Stock #:
- U051034
- VIN:
- WDDJK6GA0JF051034

2018 Mercedes-Benz SL-Class
SL 450
71,407 mi
$34,325
- Year:
- 2017
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Selenite Gray Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 40,919
- Stock #:
- D022435B
- VIN:
- WDDJK6GA7HF048884

2017 Mercedes-Benz SL-Class
SL 450 RWD
40,919 mi
$35,525
- Year:
- 2018
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- Gray
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Bengal Red/Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 30,395
- Stock #:
- 31128
- VIN:
- WDDJK7DA6JF050593

2018 Mercedes-Benz SL-Class
SL 550
30,395 mi
$52,394
- Year:
- 2017
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- Black
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown
- Transmission:
- Automatic
- Mileage:
- 49,705
- Stock #:
- 30052
- VIN:
- WDDJK7DA6HF043606

2017 Mercedes-Benz SL-Class
SL 550 RWD
49,705 mi
$41,097
- Year:
- 2018
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- Black
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 36,767
- Stock #:
- DTH1402A
- VIN:
- WDDJK7DAXJF051293

2018 Mercedes-Benz SL-Class
SL 550
36,767 mi
$50,374
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 26,655
- Stock #:
- J119185A
- VIN:
- WDDJK6GA2KF056382

2019 Mercedes-Benz SL-Class
SL 450 RWD
26,655 mi
$40,998
- Year:
- 2017
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- Black
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown
- Transmission:
- Automatic
- Mileage:
- 46,851
- Stock #:
- GHF046190
- VIN:
- WDDJK7DA5HF046190

2017 Mercedes-Benz SL-Class
SL 550 RWD
46,851 mi
$40,166
- Year:
- 2017
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- Black
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 34,650
- Stock #:
- M6408A
- VIN:
- WDDJK7DA5HF043614

2017 Mercedes-Benz SL-Class
SL 550 RWD
34,650 mi
$47,124
- Year:
- 2018
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- Black
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 67,548
- Stock #:
- JF051704
- VIN:
- WDDJK7DA5JF051704

2018 Mercedes-Benz SL-Class
SL 550
67,548 mi
$44,266
- Year:
- 2018
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- White
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Bengal Red/Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 85,491
- Stock #:
- JF051453
- VIN:
- WDDJK7DA6JF051453

2018 Mercedes-Benz SL-Class
SL 550
85,491 mi
$28,310
- Year:
- 2017
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Blue
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Off white
- Transmission:
- 9-Speed Automatic
- Mileage:
- 114,115
- Stock #:
- 9489
- VIN:
- WDDJK6GA7HF045709

2017 Mercedes-Benz SL-Class
SL 450 RWD
114,115 mi
$26,598
- Year:
- 2018
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- Polar White
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Red
- Transmission:
- 9-Speed Automatic
- Mileage:
- 67,889
- Stock #:
- JF052290P
- VIN:
- WDDJK7DA9JF052290

2018 Mercedes-Benz SL-Class
SL 550
67,889 mi
$41,123
About 2018 Mercedes-Benz SL-Class
- Year:
- 2017
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Obsidian Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Beige)
- Transmission:
- Automatic
- Mileage:
- 75,793
- Stock #:
- 046497
- VIN:
- WDDJK6GA1HF046497

2017 Mercedes-Benz SL-Class
SL 450 RWD
75,793 mi
$29,994
- Year:
- 2017
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray
- Transmission:
- Automatic
- Mileage:
- 62,583
- Stock #:
- F044979
- VIN:
- WDDJK6GA9HF044979

2017 Mercedes-Benz SL-Class
SL 450 RWD
62,583 mi
$30,697
- Year:
- 2017
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- Black
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 90,932
- Stock #:
- J4818A
- VIN:
- WDDJK7DA7HF047406

2017 Mercedes-Benz SL-Class
SL 550 RWD
90,932 mi
$28,487
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- designo Diamond White Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 16,916
- Stock #:
- 13835
- VIN:
- WDDJK7DA0KF057217

2019 Mercedes-Benz SL-Class
SL 550 RWD
16,916 mi
$59,100
- Year:
- 2018
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 22,431
- Stock #:
- 70273518
- VIN:
- WDDJK6GA3JF050699

2018 Mercedes-Benz SL-Class
SL 450
22,431 mi
$45,998
- Year:
- 2017
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 17,518
- Stock #:
- MC45283
- VIN:
- WDDJK6GA6HF045362

2017 Mercedes-Benz SL-Class
SL 450 RWD
17,518 mi
$46,167
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- Gray (Graphite Grey Metallic)
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Saddle Brown/Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 48,108
- Stock #:
- KF058337
- VIN:
- WDDJK7DA4KF058337

2019 Mercedes-Benz SL-Class
SL 550 RWD
48,108 mi
$59,172
- Year:
- 2018
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- Iridium Silver Metallic
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Saddle Brown/Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 30,470
- Stock #:
- SVU341449B
- VIN:
- WDDJK7DA0JF053327

2018 Mercedes-Benz SL-Class
SL 550
30,470 mi
$54,169
- Year:
- 2018
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 362 hp 3L V6
- Exterior color:
- White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Porcelain/Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 58,246
- Stock #:
- K053933
- VIN:
- WDDJK6GA0JF053933

2018 Mercedes-Benz SL-Class
SL 450
58,246 mi
$35,258
- Year:
- 2019
- Make:
- Mercedes-Benz
- Model:
- SL-Class
- Body type:
- Convertible
- Doors:
- 2 doors
- Drivetrain:
- Rear-Wheel Drive
- Engine:
- 449 hp 4.7L V8
- Exterior color:
- Obsidian Black
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 23,566
- Stock #:
- KF054827A
- VIN:
- WDDJK7DA1KF054827

2019 Mercedes-Benz SL-Class
SL 550 RWD
23,566 mi
$59,187
Overview

The Mercedes-Benz SL line of two-seaters has been a top choice among older well-heeled motorists who want something that mixes equal parts two-seat sports car and supple luxury cruiser. That still describes the current model, and for 2018 things mostly continue unchanged, although a reversing camera has been added as standard equipment across the lineup. It’s still handsome but not flashy, quick but not scary-fast, and luxurious but not cutting edge. It can be had in V-6, V-8 or even V-12 configurations.
The base SL450 model has a twin-turbo V-6 that makes 362 horsepower and 369 pound-feet of torque, driving the rear wheels through a 9-speed automatic. It’s enough grunt to get the SL from 0-60 mph in less than five seconds. Stepping up to the SL550 gets drivers a 4.7-liter V-8 with 449hp and a 0-60 time of about 4.3 seconds. The SL63 AMG gets you a 5.5-liter twin-turbo V-8 that makes 577 hp and scoots the SL from 0-60 in about four seconds flat and on to a top speed of 186 mph. Finally, the top dog of the SL lineup is the SL65 AMG, which gets a 6.0-liter V-12 saddled with two turbochargers. It makes a monstrous 621 hp and will get from 0-60 in less than four seconds.
The base SL450 model is rated at 20 mpg city, 28 highway, and 23 combined, while the SL550 gets 17, 25, and 20. The SL63 AMG isn’t far behind at 16, 25, and 19, but the SL65 AMG with its V-12 is predictably very thirsty at 13, 22, 16. The SL comes standard with active dampers, can be ordered with an Active Body Control system that reduces body roll, and AMG models naturally come with a sports exhaust system.
The SL seats only two, but those occupants ride in comfort and style. Leather seats are standard, and there are soft hides across the dash as well. The seats are power adjustable and have a massage feature, and other standard features include Harman Kardon stereo, and a 7.0-inch infotainment screen with controller. A Bang & Olufsen stereo is optional. Wet-arm wiper blades, LED daytime running lights, and active headlights all come standard.
The convertible top is power operated and can retract in about 30 seconds, but folds into the already modest trunk to reduce space back there from 13.5 cubic feet to just 8.5.
While the SL hasn’t been crash tested, buyers can take some comfort in the fact all models come with ample airbags and there are roll bars behind the seats that pop up in the event of a rollover. An Attention Assist, which monitors driving and suggests drivers pull over when it detects drowsy driving, also comes standard. A reversing camera is now standard even in the base SL450. Adaptive cruise control, blind-spot monitors, active lane control and forward-collision warning are optional extras.
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
5.0 Overall rating
Filter by rating
Jeremy G
Reviewed a 2018 Mercedes-Benz SL-Class on May 17, 2024
Fun car really good blend of luxury and sport. Definitely not a slouch gets off the line pretty well and handles corners decently but still has all the bells and whistles so you know you’re driving a Mercedes.
Alfred O
Reviewed a 2018 Mercedes-Benz SL-Class on Sep 25, 2023
Great touring machine! Power and comfort with solid handling. A good find
2018 Mercedes-Benz SL-Class Trims
| Trim type | MSRP |
|---|---|
| SL 550 | $112,300 |
| SL 450 | $88,200 |
| AMG SL 63 | $152,850 |
| AMG SL 65 | $222,000 |
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
2018 Mercedes-Benz SL-Class Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2018 Mercedes-Benz SL-Class prices has changed over time.
See more price trends2018 Mercedes-Benz SL-Class Pricing Analysis
Pricing by Popular US Cities
Market Area: Nationwide
Key Insights
- Highest-Price Market: Washington, DC leads with an average price of $65,999, indicating a premium market for the SL-Class.
- Best Value: New York, NY offers the lowest average price at $28,656, suggesting a more competitive pricing environment.
- Inventory Drives Stability: The most listings are found in New York, NY with 25 total listings, reflecting strong demand and availability.
City-Level Pricing
| City | Total Listings | Avg Price |
|---|---|---|
| New York, NY | 25 | $28,656 |
| Los Angeles, CA | 25 | $41,967 |
| Atlanta, GA | 25 | $45,256 |
| Dallas, TX | 23 | $51,737 |
| Philadelphia, PA | 23 | $29,453 |
| Chicago, IL | 22 | $53,995 |
| Miami, FL | 22 | $49,223 |
| Washington, DC | 21 | $65,999 |
Pricing by Trim Packages
Key Insights
- Volume Leader: The SL 550 trim has the highest inventory with 361 listings, indicating strong consumer interest.
- Premium Spread: The AMG SL 63 trim, priced at $152,850, represents the highest MSRP, showcasing the luxury segment's appeal.
- Drivetrain Effect: All trims feature a RWD drivetrain, which may influence buyer preferences towards performance and handling.
Trim-Level Details
| Trim | Listings | MSRP | Drivetrain | Engine |
|---|---|---|---|---|
| SL 550 | 361 | $112,300 | RWD | 4.7L 449 hp V8 |
| SL 450 | 13 | $88,200 | RWD | 3.0L 362 hp V6 |
| AMG SL 63 | 3 | $152,850 | RWD | 5.5L 577 hp V8 |
Pricing Analysis by Model Year
Key Insights
- New-Car Premium: The 2026 model year shows an average price of $180,410, reflecting a significant premium over its starting MSRP of $112,550.
- Depreciation Curve: The 2016 model year exhibits the steepest depreciation at -58.4%, indicating a rapid decline in value for older models.
- Best Value Sweet Spot: The 2018 model year averages $47,927, representing a strong value proposition for buyers looking for a balance between price and features.
Model Year Pricing
| Model Year | Starting MSRP | Avg Price | Avg Price vs Starting MSRP |
|---|---|---|---|
| 2026 | $112,550 | $180,410 | +60.3% |
| 2025 | $111,950 | $145,216 | +29.7% |
| 2024 | $111,800 | $133,324 | +19.3% |
| 2023 | $109,900 | $96,522 | -12.2% |
| 2022 | $137,400 | $98,239 | -28.5% |
| 2020 | $91,000 | $65,139 | -28.4% |
| 2019 | $89,150 | $56,427 | -36.7% |
| 2018 | $88,200 | $47,927 | -45.7% |
| 2017 | $86,950 | $46,749 | -46.2% |
| 2016 | $85,050 | $35,342 | -58.4% |
| 2015 | $84,000 | $35,450 | -57.8% |
These recommendations are based on CarGurus' proprietary market data from September 30, 2026, CarGurus experts' opinions, and generative AI.
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
FAQs
How many 2018 Mercedes-Benz SL-Class vehicles have no reported accidents or damage?
What is the fuel economy of the 2018 Mercedes-Benz SL-Class?
What fuel types are available?
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
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