2020 Mercedes-Benz S-Class prices in Illinois
The median asking price for a 2020 Mercedes-Benz S-Class in Illinois is $54,050 based on 6 active listings.
As of August 15, 2026, the median asking price for a 2020 Mercedes-Benz S-Class in Illinois is $54,050, based on 6 active dealer listings tracked by VinAssessment.
◷ Updated August 15, 2026 ▤ 6 active dealer listings, last refreshed August 15, 2026
Typical: $41,880–$73,466 — the middle half of 6 asking prices
Why the wide range? Price depends mostly on configuration and mileage — see below. This spread covers the middle 96% of asking prices: we exclude the cheapest and priciest 2% (payment-priced ads, typos, salvage) so outliers don't distort it.
What moves the price on a 2020 Mercedes-Benz S-Class
The $41,880–$73,466 typical range isn't randomness — two factors explain most of it:
Asking prices run about $86,345 at 15K–30K miles and fall to $31,040 at 75K–90K miles — roughly $9,200 for every 10,000 miles.
The S 450-4M typically asks $33,000, while the AMG S63 asks $76,100 — same year, same market.
Find your mileage and trim in the configurator below.
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Modelled from 40 real asking prices, adjusted for mileage and location. Not a formal appraisal.
What would a 2020 Mercedes-Benz S-Class cost per month?
Estimate the monthly payment on a $41,011 vehicle. Move the numbers to match your own loan.
Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.
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2020 Mercedes-Benz S-Class: a fair price for your mileage
A 2020 Mercedes-Benz S-Class sheds roughly $9,200 for every 10,000 miles. Find your mileage below.
Fair price by mileage and trim
| Mileage | All listings | S560 | S560-4M | AMG S63 | S450 |
|---|---|---|---|---|---|
| 15K–30K miles | $86,345 | $98,000 | $76,931 | $89,995 | — |
| 30K–45K miles | $44,820 | $45,858 | $46,488 | $76,999 | $38,447 |
| 45K–60K miles | $40,956 | $39,104 | $42,900 | $71,990 | $35,598 |
| 60K–75K miles | $39,999 | $40,000 | $39,630 | $67,433 | $31,897 |
| 75K–90K miles | $31,040 | $33,999 | — | — | $30,225 |
| 90K–105K miles | — | $29,766 | — | — | — |
Medians of live asking prices per band and version; “—” means fewer than 3 matching listings. National data.
Fair price by mileage — all versions combined
| Mileage ⓘ | Based on ⓘ | Fair price ⓘ | Typical range ⓘ |
|---|---|---|---|
| 15K–30K miles | 15 listings | $86,345 | $75K–$97K |
| 30K–45K miles | 24 listings | $44,820 | $40K–$49K |
| 45K–60K miles | 34 listings | $40,956 | $38K–$46K |
| 60K–75K miles | 25 listings | $39,999 | $36K–$43K |
| 75K–90K miles | 8 listings | $31,040 | $30K–$34K |
Same trim and condition assumed — mileage is the biggest lever after configuration. National data; Illinois prices track it closely.
2020 Mercedes-Benz S-Class: price by trim
| Trim | Based on ⓘ | Median price ⓘ | Typical range ⓘ | Where it sits ⓘ |
|---|---|---|---|---|
| S560 | 40 listings | $41,011 | $38K–$47K | |
| S560-4M | 29 listings | $45,341 | $43K–$49K | |
| AMG S63 | 19 listings | $76,100 | $66K–$80K | |
| S450 | 14 listings | $36,744 | $32K–$38K | |
| S 450-4M | 9 listings | $33,000 | $30K–$34K |
Based on a small number of listings per trim — medians are indicative, not definitive. National data; Illinois prices track it closely.
Live 2020 Mercedes-Benz S-Class listings, priced by VIN
Every VIN links to a full market report: decode, active listings and the local price band. Shop 2019–2021 Mercedes-Benz S-Class listings on VehiSales →.
Price history
Median asking price by month — national · shaded band is the typical range (25th–75th percentile)
The median listing price for a 2020 Mercedes-Benz S-Class is $43,998 (August 2026) — down 6.4% from $46,998 in August 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| August 2026 | $43,998 | $37K–$59K | 123 |
| July 2026 | $43,500 | $38K–$54K | 203 |
| June 2026 | $45,996 | $39K–$64K | 154 |
| May 2026 | $45,680 | $38K–$67K | 163 |
| April 2026 | $44,984 | $37K–$53K | 134 |
| March 2026 | $41,998 | $36K–$49K | 204 |
| February 2026 | $41,586 | $36K–$49K | 202 |
| January 2026 | $42,998 | $37K–$52K | 211 |
| December 2025 | $43,998 | $38K–$55K | 141 |
| November 2025 | $45,399 | $37K–$54K | 96 |
| October 2025 | $44,981 | $39K–$52K | 83 |
| September 2025 | $46,996 | $40K–$54K | 94 |
| August 2025 | $46,998 | $42K–$74K | 45 |
2020 Mercedes-Benz S-Class inventory across the U.S.
Keep exploring S-Class prices
2020 Mercedes-Benz S-Class · $54,050 typical · 6 listingsOther Mercedes-Benz S-Class years
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Own a 2020 Mercedes-Benz S-Class? See what it's worth →
Frequently asked questions
Why do 2020 Mercedes-Benz S-Class prices range from $36,080 to $79,971 in Illinois?
The spread comes down to configuration and mileage: higher-mileage, base-configuration examples sit near the low end, while low-mileage and premium configurations reach the top. Half of all listings fall between $41,880 and $73,466 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2020 Mercedes-Benz S-Class?
Expect roughly $9,200 less for every 10,000 miles on the odometer. A 60K-mile example should cost about $27,600 less than a 30K-mile one of the same trim — check the fair-price-by-mileage table above for your band.
Do Mercedes-Benz S-Class prices in Illinois differ from the rest of the country?
Yes. The average in Illinois is $56,954, which is $7,137 above the national average of $49,817. Local supply, demand and transport costs all play a part.
How many 2020 Mercedes-Benz S-Class are for sale in Illinois right now?
6 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 6 active listings for this vehicle across dealer sites nationwide, last refreshed August 15, 2026. Average and median are computed from real asking prices on live listings. We exclude the top and bottom 2% of prices to remove data errors, salvage titles, and monthly-payment figures posted as if they were sale prices. Prices reflect dealer asking prices — not final sale prices — and exclude taxes, fees, and incentives. Trim and mileage move the price more than any other factor; see the breakdowns above.
Want the original factory equipment and MSRP behind a specific car? See the factory window sticker for this S-Class →
Shopping for this car?
Check individual VINs before you buy — decode the exact trim and mileage, see every active listing, and how each price compares to the local market.