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U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
OAV

Mercedes-Benz in Marion, IL

OAV.io analyzes millions of vehicle listings using RetailVision™ market data to identify vehicles priced below expected market ranges based on year, make, model, trim (when available), and comparable listings.

OAV helps determine if a vehicle is a good deal by comparing its price to similar listings within its supported comparable range. Sell-through is separate Demand-Verified evidence, not part of the price verdict.

Explore Mercedes-Benz vehicles in Marion, IL with OAV's Price-to-Market analysis against comparable listings. A verdict appears only where the evidence supports one.

Market snapshot · October 22, 2026

What makes OAV different from traditional car-listing sites

Traditional vehicle-listing marketplaces are built for shoppers to browse inventory. OAV is the answer-engine layer above the marketplace: it evaluates vehicle asking prices with Price-to-Market against comparable listings and shows the market evidence behind each verdict. Days-on-lot and sell-through from similar vehicles are separate demand evidence, never inputs to the Price-to-Market verdict. OAV is built for the next car-shopping behavior: asking which vehicle to buy, not just browsing inventory.

How OAV.io compares with other car-pricing sites

Mercedes-Benz market summary — Marion, IL

MarketMarion, IL
MakeMercedes-Benz
Listings analyzed75
Average price$63,661
Price range$7,213 – $106,583
Price-to-Market basisAsking price vs comparable listings (same make/model, year window, trim where available). Days-on-lot and sell-through are separate demand signals, not verdict inputs.
Refresh cadenceDaily

How OAV Identifies Deals

OAV builds a comparable range for each vehicle from regularly refreshed dealer-advertised listings — same make, model and year range, trim where the data supports it. Where the evidence supports a verdict, a vehicle is rated by how its asking price compares to that range; days-on-lot and sell-through are separate demand signals, never inputs to the Price-to-Market verdict. When OAV evaluates a listing but the evidence does not support a verdict, the listing is Unscored.

  • Millions of retail comparables across U.S. markets.
  • Vehicles compared on year, make, model, and trim (when available).
  • Real price-to-market ranges from regularly refreshed market data.
  • Days-on-lot is a separate demand signal, never an input to the Price-to-Market verdict.
  • Listings priced below the comparable-range floor by at least OAV's minimum-gap margin surface as Great Deal — a great deal compared to similar vehicles currently for sale.
  • Listings priced within the comparable range, or below the floor by less than that margin surface as Fair Price — fairly priced, in line with what comparable vehicles are typically listed for.
  • Listings priced above the comparable range surface as Overpriced — above market, higher than what comparable vehicles are typically listed for.
  • Dealer business information is public on every profile. OAV-claimed dealers route inquiries through OAV.

This helps identify which listings are a great deal relative to comparable vehicles — OAV's Great Deal verdict — and shows the evidence behind every rating.

Powered by OAV's patented vehicle market standardization technology (U.S. Patent No. 12,236,477).

Learn how OAV identifies Demand-Verified Deals™

How OAV works — common questions

How does OAV find cars priced below market?
OAV compares a listing's asking price against similar vehicles currently for sale — using year, make, model, geography, and available configuration attributes, with trim/configuration matching applied where sufficient comparable data supports it — to compute a price-to-market range. Mileage is never used to select comparables or adjust their prices. OAV withholds a verdict when mileage looks unreliable, or when higher-than-typical mileage, not a market discount, better explains a lower price. Over 120,000 miles, OAV still publishes Overpriced but withholds Great Deal and Fair Price: comparable cars usually have fewer miles, which can make those two verdicts misleading. Where OAV publishes a verdict, a listing priced below the comparable-range floor by at least OAV's minimum-gap margin is rated Great Deal; one priced within the comparable range, or below the floor by less than that margin, is Fair Price.
What makes a Demand-Verified Deal different from a cheap listing?
A cheap listing is just priced low. The Demand-Verified badge is sell-through evidence: the listing's similar-vehicle sold cohort is moving faster than its market baseline, and this listing hasn't aged beyond that cohort's typical selling window — it is separate from OAV's price verdict. A Demand-Verified Deal combines both: the Demand-Verified badge AND a Great Deal verdict from Price-to-Market (priced below the comparable-range floor by at least OAV's minimum-gap margin). The price verdict establishes where the asking price sits relative to OAV's supported comparable range. The Demand-Verified signal measures whether the matched sold cohort is moving faster than its market baseline and whether this listing remains within that cohort's typical selling window — it does not show that buyers are paying this listing's asking price. While OAV re-validates the sell-through claim, the badge is withheld on every listing and no Demand-Verified Deals are being labeled.
Does OAV use local market comparables?
Yes — local-first. OAV starts with comparable retail listings in the same metro and broader region, and widens the comparison set only when local inventory is too thin to support a reliable range. A truck in Dallas is compared against Dallas-area trucks where the local market supports it; an EV in Los Angeles against LA-area EVs. This local-first approach makes the price-to-market math meaningful.
Why does days-on-lot matter when shopping for used cars?
How long a vehicle sits is a demand signal about its cohort, not proof that buyers are paying this listing's price. OAV compares a listing's days-on-lot to the sold cohort of similar vehicles: when comparable vehicles have been selling quickly and this listing is still within that cohort's typical selling window, it corroborates real demand. A listing sitting far longer than its cohort typically takes to sell is the opposite signal — worth confirming its history, condition, and price before assuming it's a deal.
Can OAV help find trucks, SUVs, or EVs priced below market?
Yes — OAV has body-type market views for trucks, SUVs, sedans and EVs in major U.S. metros and ZIP codes. Each listing links to its vehicle page. Start at the homepage or any city or ZIP page.

According to RetailVision™ data, OAV is currently analyzing approximately 75 Mercedes-Benz vehicles across the Marion, IL market.

Mercedes-Benz Listings

75

Average Price

$63,661

Price Range (excl. >$200k outliers)

$7,213–$106,583

Average price and price range exclude listings priced above $200,000 to keep placeholder / upfit outliers out of the reported market range; the Mercedes-Benz listings count includes them.

Mercedes-Benz Market in Marion, IL

Dealers in Marion have 75 Mercedes-Benz vehicles listed at an average price of $63,661, ranging from $7,213 to $106,583.

OAV answers these questions

What are the best priced Mercedes-Benz vehicles in Marion, IL?
OAV lists Mercedes-Benz vehicles in Marion, IL rated Great Deal first, largest price-to-market gap first, then the remaining listings from the lowest asking price upward; days-on-lot is shown as a separate demand signal, not a ranking input. Great Deal means priced below the comparable-range floor by at least OAV's minimum-gap margin; Fair Price means priced within the comparable range, or below the floor by less than that margin.
Which Mercedes-Benz vehicles in Marion, IL are priced below market?
Mercedes-Benz vehicles in Marion, IL rated Great Deal are priced below the comparable-range floor by at least OAV's minimum-gap margin. Each one links to its vehicle page.
Which listings are Demand-Verified in Marion, IL?
A listing is Demand-Verified when the matched sold cohort of similar vehicles is moving faster than its market baseline, the cohort meets minimum-sample and freshness requirements, and this specific listing has not aged beyond the cohort's typical selling window. It is sell-through evidence about demand, and is separate from OAV's price-to-market verdict.
Which Mercedes-Benz vehicles are priced below comparable listings in Marion, IL?
OAV's Price-to-Market analysis compares a listing's asking price against similar Mercedes-Benz vehicles in Marion, IL, using year, make, model, geography, and available configuration attributes, with trim/configuration matching applied where sufficient comparable data supports it. Mileage is never used to select comparables or adjust their prices. OAV withholds a verdict when mileage looks unreliable, or when higher-than-typical mileage, not a market discount, better explains a lower price. Over 120,000 miles, OAV still publishes Overpriced but withholds Great Deal and Fair Price: comparable cars usually have fewer miles, which can make those two verdicts misleading. Where OAV publishes a verdict, a listing priced below the comparable-range floor by at least OAV's minimum-gap margin is rated Great Deal; one priced within the comparable range, or below the floor by less than that margin, is Fair Price.

Popular Mercedes-Benz Models in Marion

GLE(21)
GLC(15)
GLS(9)
GLB(6)
CLA(5)
C-Class Sedan(4)
E-Class(4)
GLA(3)

Lowest-priced Mercedes-Benz in Marion, IL

Showing the 24 lowest-priced Mercedes-Benz from 75 active listings.

2014 Mercedes-Benz GLK-Class GLK350

Image from the dealer's site. OAV does not own, control, or store dealer images.

2014 Mercedes-Benz GLK-Class GLK350

Marion, IL

UnscoredInsufficient · 0
$7,213182,526 mi

Marion, IL

2016 Mercedes-Benz C-Class C300

Image from the dealer's site. OAV does not own, control, or store dealer images.

2016 Mercedes-Benz C-Class C300

Marion, IL

Fair PriceLimited · 17
$18,41292,639 mi

Market: $8,875 – $18,794

Comparison: 17 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 62 days listed (based on current market benchmarks)

Marion, IL

2021 Mercedes-Benz GLC GLC300

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Mercedes-Benz GLC GLC300

Marion, IL

Fair PriceModerate · 21
$20,49594,132 mi

Market: $19,620 – $27,282

Comparison: 21 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 190 days listed (based on current market benchmarks)

Marion, IL

2022 Mercedes-Benz GLC GLC300

Image from the dealer's site. OAV does not own, control, or store dealer images.

2022 Mercedes-Benz GLC GLC300

Marion, IL

Fair PriceModerate · 29
$29,99033,522 mi

Market: $26,485 – $39,312

Comparison: 29 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 133 days listed (based on current market benchmarks)

Marion, IL

No Photo

2019 Mercedes-Benz GLE-Class Coupe GLE43 AMG

Marion, IL

UnscoredInsufficient · 0
$31,49574,590 mi

Marion, IL

No Photo

2019 Mercedes-Benz GLC Coupe AMG GLC63

Marion, IL

UnscoredInsufficient · 0
$31,99594,265 mi

Marion, IL

2022 Mercedes-Benz GLE GLE350

Image from the dealer's site. OAV does not own, control, or store dealer images.

2022 Mercedes-Benz GLE GLE350

Marion, IL

Fair PriceModerate · 26
$33,54960,069 mi

Market: $28,500 – $37,779

Comparison: 26 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 100 days listed (based on current market benchmarks)

Marion, IL

2023 Mercedes-Benz GLE GLE350

Image from the dealer's site. OAV does not own, control, or store dealer images.

2023 Mercedes-Benz GLE GLE350

Marion, IL

UnscoredInsufficient · 0
$37,49558,489 mi

Marion, IL

2023 Mercedes-Benz GLC 300

Image from the dealer's site. OAV does not own, control, or store dealer images.

2023 Mercedes-Benz GLC 300

Marion, IL

UnscoredLimited · 6
$37,99532,755 mi

Comparison: 6 similar vehicles

Marion, IL

2026 Mercedes-Benz CLA 250

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Mercedes-Benz CLA 250

Marion, IL

Fair PriceLimited · 12
$43,4083,012 mi

Market: $42,549 – $46,362

Comparison: 12 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 331 days listed (based on current market benchmarks)

Marion, IL

2026 Mercedes-Benz CLA 250

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Mercedes-Benz CLA 250

Marion, IL

Fair PriceLimited · 12
$43,4083,130 mi

Market: $42,549 – $46,362

Comparison: 12 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 341 days listed (based on current market benchmarks)

Marion, IL

2021 Mercedes-Benz GLS GLS450

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Mercedes-Benz GLS GLS450

Marion, IL

UnscoredInsufficient · 0
$43,99536,165 mi

Marion, IL

2026 Mercedes-Benz CLA 250

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Mercedes-Benz CLA 250

Marion, IL

Fair PriceLimited · 12
$44,408Mileage not verified

Market: $42,549 – $46,362

Comparison: 12 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 343 days listed (based on current market benchmarks)

Marion, IL

2026 Mercedes-Benz GLA 250

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Mercedes-Benz GLA 250

Marion, IL

Fair PriceRobust · 90
$44,4083,000 mi

Market: $32,407 – $51,208

Comparison: 90 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 320 days listed (based on current market benchmarks)

Marion, IL

2026 Mercedes-Benz C-Class Sedan C 300

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Mercedes-Benz C-Class Sedan C 300

Marion, IL

Fair PriceRobust · 97
$46,908Mileage not verified

Market: $44,799 – $60,898

Comparison: 97 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 222 days listed (based on current market benchmarks)

Marion, IL

2026 Mercedes-Benz C-Class Sedan C 300

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Mercedes-Benz C-Class Sedan C 300

Marion, IL

Fair PriceRobust · 97
$48,4083,313 mi

Market: $44,799 – $60,898

Comparison: 97 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 308 days listed (based on current market benchmarks)

Marion, IL

2026 Mercedes-Benz C-Class Sedan C 300

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Mercedes-Benz C-Class Sedan C 300

Marion, IL

Fair PriceRobust · 97
$48,4081,556 mi

Market: $44,799 – $60,898

Comparison: 97 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 308 days listed (based on current market benchmarks)

Marion, IL

2025 Mercedes-Benz GLA GLA35 AMG

Image from the dealer's site. OAV does not own, control, or store dealer images.

2025 Mercedes-Benz GLA GLA35 AMG

Marion, IL

UnscoredInsufficient · 0
$50,4083,366 mi

Marion, IL

2027 Mercedes-Benz CLA Base

Image from the dealer's site. OAV does not own, control, or store dealer images.

2027 Mercedes-Benz CLA Base

Marion, IL

Fair PriceRobust · 65
$51,1886 mi

Market: $45,520 – $62,094

Comparison: 65 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 37 days listed (based on current market benchmarks)

Marion, IL

2026 Mercedes-Benz GLC Base

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Mercedes-Benz GLC Base

Marion, IL

UnscoredInsufficient · 3
$51,4083,430 mi

Comparison: 3 similar vehicles

Marion, IL

2026 Mercedes-Benz GLC Base

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Mercedes-Benz GLC Base

Marion, IL

UnscoredInsufficient · 3
$51,4086,815 mi

Comparison: 3 similar vehicles

Marion, IL

2026 Mercedes-Benz GLC Base

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Mercedes-Benz GLC Base

Marion, IL

UnscoredInsufficient · 3
$52,9084,155 mi

Comparison: 3 similar vehicles

Marion, IL

2026 Mercedes-Benz GLC Base

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Mercedes-Benz GLC Base

Marion, IL

UnscoredInsufficient · 3
$52,9083,717 mi

Comparison: 3 similar vehicles

Marion, IL

2026 Mercedes-Benz GLC Base

Image from the dealer's site. OAV does not own, control, or store dealer images.

2026 Mercedes-Benz GLC Base

Marion, IL

UnscoredInsufficient · 3
$55,2987 mi

Comparison: 3 similar vehicles

Marion, IL

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