Used 2020 Mercedes-Benz SL SL 450 Roadster 2D
Pricing
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Values and Prices
Fair Purchase Price is determined by collecting thousands of actual consumer vehicle purchase prices, plus data from national vehicle registration databases and several other reliable third-party sources.
Estimated Values
Condition | Trade-In Value | Private Party Value | ||
|---|---|---|---|---|
Excellent | $43,410 | $48,700 | ||
Very Good | $42,110 | $47,300 | ||
Good | $40,610 | $45,600 | ||
Fair | $36,810 | $41,400 |
Estimated Trade-In Values for the 2020 Mercedes-Benz SL SL 450 Roadster 2D range from about $36,810 to $43,410 depending on vehicle condition. Estimated Private Party Values range from about $41,400 to $48,700 depending on vehicle condition. Valid for ZIP Code 48653 through 9/26/2026.
2020 Mercedes-Benz SL SL 450 Roadster 2D Depreciation
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2020 Mercedes-Benz SL SL 450 Roadster 2D Annual Depreciation
Year | Vehicle Depreciation* | Resale Value | Trade-In Value | ||
|---|---|---|---|---|---|
2023 | $19,965 | $55,850 | $52,627 | ||
2024 | $9,454 | $46,396 | $43,217 | ||
2025 | $7,003 | $39,393 | $36,509 | ||
Now | + $7,207 | $46,600 | $41,500 |
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2-Year Forecasted Depreciation
*Depreciation for the last 12 months of the private party resale value.
2020 Mercedes-Benz SL SL 450 Roadster 2D Depreciation
Annual Depreciation is an estimation of what your vehicle's value might be over time based on an average of similar vehicles. Estimations are calculated by comparing Kelley Blue Book Private Party Values of vehicles similar to yours over time, as well as forecasts from Manheim Auction data comparing current and projected auction values against current Kelley Blue Book Private Party and Trade-In Values. This is not a guarantee of actual depreciation. Local weather conditions, market factors and driver performance will also impact your vehicle's actual depreciation.
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Specifications
Dimensions, Weights & Capacities
Curb Weight | 3825 lbs. | ||
|---|---|---|---|
Fuel Capacity | 19.8 gallons | ||
Front Head Room | 39.1 inches | ||
Front Leg Room | 53.6 inches | ||
Max Seating Capacity | 2 | ||
Overall Length | 182.3 inches | ||
Front Shoulder Room | 55.5 inches | ||
Trunk or Cargo Capacity | 13.5 cu.ft. | ||
Turning Diameter | 36.2 feet | ||
Wheel Base | 101.7 inches | ||
Width with mirrors | 82.6 inches |
Exterior
Adaptive Headlights | Available | ||
|---|---|---|---|
Alloy Wheels | Available | ||
Moon Roof/Sun Roof | Available | ||
Number of Doors | 2 doors | ||
Panorama Moon Roof | Available | ||
Power Retractable Top | Available | ||
LED Headlights | Available |
Fuel Economy
City | 20 mpg | ||
|---|---|---|---|
Highway | 28 mpg | ||
Combined | 22 mpg |
Mechanical
Drivetrain | RWD | ||
|---|---|---|---|
Transmission Type | Automatic | ||
9 speed | Available | ||
Recommended Fuel | Premium | ||
Parking Assist System | Available |
Performance
Horsepower | 362 @ 5500 RPM | ||
|---|---|---|---|
Torque | 369 @ 2000 rpm | ||
Engine | V6, Twin Turbo, 3.0 Liter | ||
0 to 60 | 4.9 seconds | ||
Top Speed | 155 mph |
Warranty
Basic | 4 years / 50000 miles | ||
|---|---|---|---|
Powertrain | 4 years / 50000 miles | ||
Corrosion | 12 years / Unlimited miles |
2020 Mercedes-Benz SL SL 450 Roadster 2D Standard Features
2020 Mercedes-Benz SL
KBB.com Review
Power, poise & performance in equal measure. Comfortable & luxurious cabin. Power-retractable hardtop roof. Power wind-blocker and Airscarf neck warming. Heated, ventilated, massaging seats w/sun-reflective leather.
Imminent replacement by a much improved, AMG-engineered example. Sky-high prices for a vehicle that will depreciate rapidly.
2020 Mercedes-Benz SL
KBB.com Consumer Reviews
Consumer Rating
2020 Mercedes-Benz SL SL 450 Roadster 2D Safety
Safety Features & Technology
Compare to Similar Vehicles
 Used 2020 Mercedes-Benz SL SL 450 Roadster 2D |  New 2026 MINI Convertible |  New 2025 Ford Mustang |  New 2026 MAZDA MX-5 Miata RF | ||
|---|---|---|---|---|---|
| Price | $50,400 | $41,475 | $42,115 | $43,135 | |
| KBB.com Rating | N/A | 4.0 | 4.5 | N/A | |
| Consumer Rating | 4.6 | 5.0 | 4.8 | 4.7 | |
| Fuel Economy | City 20/Hwy 28/Comb 22 MPG | City 26/Hwy 36/Comb 30 MPG | City 22/Hwy 33/Comb 26 MPG | N/A | |
| Fuel Type | Gas | N/A | N/A | N/A | |
5 Year Cost To Own 5-Year Cost to Own includes out of pocket expenses like fuel and insurance, plus the car’s loss in value over time (depreciation). | N/A | $61,421 | $69,452 | N/A | |
| Seating Capacity | 2 | 4 | 4 | 2 | |
| Basic Warranty | 4 years or 50000 miles | 4 years or 50000 miles | 3 years or 36000 miles | 3 years or 36000 miles | |
| Horsepower | 362 @ 5500 RPM | 201 @ 1450 RPM | 315 @ 5000 RPM | 181 @ 7000 RPM | |
| Engine | V6, Twin Turbo, 3.0 Liter | 4-Cyl, Turbo, 2.0 Liter | 4-Cyl, Turbo, EcoBoost, 2.3 Liter | 4-Cyl, SKYACTIV-G, 2.0 Liter | |
| Drivetrain | RWD | FWD | RWD | RWD |