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

GMC Terrain in Illinois

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 local comparables.

OAV helps determine if a vehicle is a good deal by comparing it to similar listings and expected sell-through rates.

Independent market evidence — no dealer pays for inclusion or ranking, no editorial curation, only measured data from live listings.

Market snapshot · August 8, 2026

GMC Terrain — market pricing in Illinois

As of 2026-08-08, 1,294 listed GMC Terrains in Illinois had a median asking price of $25,675, with a typical range (25th–75th percentile) of $17,999–$36,598, median odometer 37,340 mi, and a median 41 days on the lot. Asking prices, not sold prices; aggregated across model years from a dated market snapshot.

Per-listing verdicts on the OAV listings surface use the OAV Price-to-Market™ (PTM) score — an evidentiary comparison of each listing's asking price against local same-year, same-model comparables.

Median price
$25,675
Typical range
$17,999–$36,598
Median miles
37,340 mi
Median days on lot
41
Listings
1,294

Aggregated from 5.7 million active dealer listings across all 51 states + DC, deduplicated by VIN and refreshed daily. Median & percentiles from 1,294 listings in Illinois at the 2026-08-08 snapshot. Not a verdict on any single vehicle.

By Model Year in Illinois

The GMC Terrain distribution across model years in Illinois. Each linked year opens a dedicated market-evidence page with the year-specific median, range, and days-on-lot.

Model YearListingsMedian Price
2027275$38,130no dedicated page
2026234$38,684See 2026 details →
202523$28,578See 2025 details →
2024174$24,116See 2024 details →
2023122$24,751See 2023 details →
202261$22,990See 2022 details →
202134$20,086See 2021 details →
202062$18,988See 2020 details →
201959$15,990no dedicated page
201845$13,975no dedicated page
201745$10,795no dedicated page
201633$10,497no dedicated page
201538$9,995no dedicated page
201434$8,200no dedicated page
201326$6,998no dedicated page

How OAV Identifies Deals

OAV uses RetailVision™ market data to analyze current listings, historical sales patterns, and local market conditions. Vehicles are ranked based on pricing versus comparable listings in the same region and expected sell-through velocity.

  • Millions of local retail comparables across U.S. markets.
  • Vehicles compared on year, make, model, and trim (when available) within the local and regional market.
  • Real price-to-market ranges from regularly refreshed market data.
  • Days on lot incorporated as a sell-through velocity signal.
  • Listings priced below their typical market range surface as undervalued — a great deal or a good deal compared to similar vehicles in the local market.
  • Listings within the typical range surface as fairly priced — in line with what comparable vehicles are listed for locally.
  • Listings priced above the typical range surface as above market — higher than what comparable vehicles are typically listed for in the area.
  • Dealer business information is public on every profile. OAV-claimed dealers manage their profile directly and route inquiries through OAV.

This helps identify undervalued vehicles and determine whether a listing represents a great deal or a good deal in its local market.

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

Learn how OAV identifies Demand-Verified Deals™