Mercedes-Benz SL-Class
AI Analyzed

Mercedes-Benz SL-Class

R231 (6th Gen) - SL 450

1979-2020 convertible
Overall Average Market Price
$43,026
Range: $29,929 - $65,900

Average Price by Year

Compare prices within the same model year

2017
$39,078
52,397 mi avg
20 listings
2018
$40,555
34,544 mi avg
13 listings
2019
$41,519
49,217 mi avg
15 listings
2020
$54,167
28,611 mi avg
12 listings
60
Active Listings
42,817
Overall Avg Mileage
62
Days on Market

Market Insights

Best Value Year

2018

Price Trend

Prices for the Mercedes-Benz SL-Class are showing stability, with newer models (2019-2020) commanding higher prices but also offering significant savings relative to their original MSRP. Older models (2017-2018) provide excellent entry points into the SL ownership experience, often with competitive mileage and attractive pricing. The market is not experiencing rapid depreciation, indicating sustained demand for this iconic GT.

Inventory Level

Moderate

Buyer Advice

The Mercedes-Benz SL-Class market presents a compelling opportunity for buyers seeking a luxurious grand tourer. Inventory appears moderate, with a healthy mix of recent model years. Buyers should prioritize vehicles with lower mileage and a documented maintenance history, as these factors significantly impact long-term value and driving experience. The presence of several deals with substantial estimated savings suggests that negotiation is possible, especially for listings that have been on the market for an extended period. Consider models from 2017-2019 for a strong balance of modern features, depreciation, and price.

Top 15 Recommended Deals

Best Deal
#1
Deal 1
2020 $49,950
Save ~$4,217
8,910 mi Covington, VA 2020
Covington Car Company
Deal Score: 75%

This deal stands out due to its exceptionally low mileage (under 9,000 miles) for a 2020 model, combined with a strong deal score and significant estimated savings. It represents a near-new example of the SL-Class at a competitive price point.

VIN: W1KJK6GA8LF060888
View Listing
#2
Deal 2
2017 $37,799
Save ~$1,279
34,624 mi Streetsboro, OH 2017
Volkswagen of Streetsboro
Deal Score: 71%

This deal offers a well-priced 2017 SL 450 with reasonable mileage for its age. It scores well due to its attractive price point and moderate days on market, suggesting it's a solid value proposition.

VIN: WDDJK6GA4HF045487
View Listing
#3
Deal 3
2020 $53,671
Save ~$496
18,369 mi Plano, IL 2020
Dempsey Dodge Chrysler Jeep
Deal Score: 63%

This 2020 SL 450 is recommended for its exceptionally low mileage (under 19,000 miles) and recent model year, making it a premium option. Despite a smaller estimated saving, its condition and mileage are key value drivers.

VIN: W1KJK6GA9LF060981
View Listing
#4
Deal 4
2017 $36,160
Save ~$2,918
52,188 mi Pompano Beach, FL 2017
Mercedes-Benz Pompano
Deal Score: 62%

This 2017 SL 450 offers a substantial estimated saving and a competitive price point. Its mileage is reasonable for its age, and it's a strong contender for buyers looking for value in a slightly older model year.

VIN: WDDJK6GAXHF047051
View Listing
#5
Deal 5
2018 $39,987
Save ~$568
19,740 mi Mesa, AZ 2018
Larry H. Miller Ford Mesa
Deal Score: 60%

This 2018 SL 450 is a standout due to its very low mileage (under 20,000 miles) for a vehicle of its age. It offers a great combination of luxury, performance, and condition at an attractive price.

VIN: WDDJK6GA1JF053097
View Listing
#6
Deal 6
2017 $37,852
Save ~$1,226
45,609 mi Minnetonka, MN 2017
Sears Imported Autos
Deal Score: 58%

This 2017 SL 450 presents a solid value with a good estimated saving and reasonable mileage for its model year. It's a well-rounded option for those seeking a luxury convertible.

VIN: WDDJK6GA9HF046831
View Listing
#7
Deal 7
2018 $36,491
Save ~$4,064
17,310 mi North East, PA 2018
NFI Empire Custom Built Jeeps
Deal Score: 56%

This 2018 SL 450 is a top recommendation due to its remarkably low mileage (under 18,000 miles) and substantial estimated savings. It represents excellent value for a nearly new luxury convertible.

VIN: WDDJK6GA7JF052827
View Listing
#8
Deal 8
2018 $38,903
Save ~$1,652
25,811 mi Fort Worth, TX 2018
AutoNation Chrysler Dodge Jeep Ram North Fort Worth
Deal Score: 54%

This 2018 SL 450 offers a good balance of mileage (under 26,000 miles) and price, with a respectable estimated saving. It's a solid choice for a well-maintained luxury convertible.

VIN: WDDJK6GAXJF054359
View Listing
#9
Deal 9
2019 $37,950
Save ~$3,569
69,307 mi Milford, DE 2019
i.g. Burton Imports
Deal Score: 50%

This 2019 SL 450 is recommended for its substantial estimated savings and competitive price, despite having higher mileage. It represents a good opportunity for buyers prioritizing a newer model year and significant discount.

VIN: WDDJK6GA1KF056728
View Listing
#10
Deal 10
2020 $50,995
Save ~$3,172
31,633 mi Chattanooga, TN 2020
Scenic City Cars
Deal Score: 48%

This 2020 SL 450 offers a good balance of a recent model year, reasonable mileage, and a significant estimated saving. Its longer days on market might present an opportunity for negotiation.

VIN: WDDJK6GAXLF058737
View Listing
#11
Deal 11
2020 $41,888
Save ~$12,279
40,828 mi Plano, TX 2020
Auto Merchants Inc.
Deal Score: 47%

This deal is highly recommended due to its outstanding estimated savings, one of the largest in the list, combined with a 2020 model year and reasonable mileage. It represents a significant opportunity for value.

VIN: W1KJK6GA8LF061250
View Listing
#12
Deal 12
2017 $34,995
Save ~$4,083
75,793 mi Coventry, CT 2017
Coventry Motorcar
Deal Score: 47%

This 2017 SL 450 is a strong value pick, offering one of the lowest prices and a significant estimated saving. While mileage is higher, the price point makes it an accessible luxury convertible.

VIN: WDDJK6GA1HF046497
View Listing
#13
Deal 13
2017 $36,998
Save ~$2,080
48,000 mi Scottsdale, AZ 2017
House of Cars Arizona
Deal Score: 45%

This 2017 SL 450 is a solid option with reasonable mileage and a competitive price, offering a good estimated saving. It's a well-balanced choice for a luxury GT.

VIN: WDDJK6GA8HF044455
View Listing
#14
Deal 14
2020 $43,995
Save ~$10,172
66,123 mi Silver Spring, MD 2020
Universal Auto Group Corp
Deal Score: 43%

This 2020 SL 450 stands out due to its significant estimated savings and a price that is close to the market average, despite higher mileage for its year. Its long days on market suggest potential for negotiation.

VIN: WDDJK6GA2LF058926
View Listing
#15
Deal 15
2020 $43,998
Save ~$10,169
55,453 mi Jersey City, NJ 2020
Steven's Jersey City Ford
Deal Score: 43%

This 2020 SL 450 is a notable deal due to its substantial estimated savings and a price point that offers significant value, even with its mileage. Its extended time on market may indicate flexibility from the seller.

VIN: W1KJK6GA7LF061157
View Listing
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Last analyzed: November 2, 2025