2018 Mercedes-Benz SL550 Market Value & Price History
The 2018 Mercedes-Benz SL550 has a market value of $54,341, based on 7 verified auction sales tracked by DriveIndex, with all 7 verified USD sales between $36,550 and $60,500. No sale since Dec 1, 2025, so this value may not reflect today's market. 2 have sold in the past 12 months.
Data: DriveIndex. 7 verified auction sales for the 2018 Mercedes-Benz SL550, latest sale Dec 1, 2025. Methodology
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Open the SL550 on DriveIndex →2018 Mercedes-Benz SL550 Price History
The median 2018 Mercedes-Benz SL550 sold for $55,050 in 2025, against $57,500 in 2024. Each row is the median of the verified sales recorded in that calendar year, so it moves with the mix of mileages and options that came to market as well as with the market itself.
| Year | Median sale | Sales |
|---|---|---|
| 2025 | $55,050 | 4 |
| 2024 | $57,500 | 3 |
Years with fewer than three verified USD sales are omitted — a one-sale “median” is a single car, not a market.
Recent 2018 Mercedes-Benz SL550 Auction Results
| Sold | Price | Mileage | Gearbox |
|---|---|---|---|
| Dec 1, 2025 | $36,550 | 61,000 mi | Automatic |
| Oct 9, 2025 | $57,000 | 10,700 mi | Automatic |
| May 8, 2025 | $54,000 | 10,000 mi | Automatic |
| Mar 21, 2025 | $56,100 | 10,091 mi | Automatic |
| Jul 2, 2024 | $51,150 | 33,000 mi | Automatic |
| Mar 17, 2024 | $60,500 | 27,000 mi | Automatic |
| Feb 12, 2024 | $57,500 | 17,000 mi | — |
Verified results from the world's leading collector-car auction houses and marketplaces.
All Mercedes-Benz SL550 auction results →See the full picture on the 2018 Mercedes-Benz SL550
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Mercedes-Benz SL550 by Year
Which SL550 year should you buy? Every year compared →2018 Mercedes-Benz SL550: Frequently Asked Questions
How much is a 2018 Mercedes-Benz SL550 worth?
A 2018 Mercedes-Benz SL550 is worth approximately $54,341, based on 7 verified auction sales tracked by DriveIndex. No sale since Dec 1, 2025, so this value may not reflect today's market. All 7 verified USD sales fall between $36,550 and $60,500. Condition, mileage and options move an individual car within that band.
How much did a 2018 Mercedes-Benz SL550 cost new?
The 2018 Mercedes-Benz SL550 carried an original MSRP of $109,900. Its DriveIndex market value is $54,341. No sale since Dec 1, 2025, so this value may not reflect today's market.
How much has the 2018 Mercedes-Benz SL550 depreciated?
The 2018 Mercedes-Benz SL550 is worth about 51% less than it cost new: it carried an original MSRP of $109,900, and its DriveIndex market value is $54,341. That compares the DriveIndex value with the sticker price, not adjusted for inflation. No sale since Dec 1, 2025, so this value may not reflect today's market.
How many 2018 Mercedes-Benz SL550 sell per year?
2 have sold at auction in the past 12 months. DriveIndex has tracked 7 2018 Mercedes-Benz SL550 sales in total.
Are 2018 Mercedes-Benz SL550 sale prices higher or lower than a year ago?
There aren't yet enough recent sales to compute a reliable 12-month price direction for the 2018 Mercedes-Benz SL550. The full Value Signal classification (appreciating, stable, bottomed, or depreciating) and its 1–5 year projection are part of DriveIndex Pro.
Where can I buy a 2018 Mercedes-Benz SL550?
DriveIndex tracks for-sale listings and auction results for the 2018 Mercedes-Benz SL550 from the world's leading collector-car auction houses and marketplaces.
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