Marque
Search a car…
United States market

Buick GNX

1987–1987

Add to Garage
  • Lowest price

    US$110,000

    Since 2020

  • Median price

    US$167,750

    Since 2020 · n=6

  • Highest price

    US$225,000

    Since 2020

  • Sold cars

    6

    All time

  • Sell-through

    100%

    Of 6 lots

Buick GNX

Based on 6 verified auction results

HOLDAppreciatingmedium confidence

US$192,500

Market value · recent verified sales

+24.9%

12-month change

Hold or Wait

Appreciating but pace slowing. Patient buyers may find better entry.

Median sold price up 24.9% over the last 12 months. Hold if owned; chasing the trend at peak carries risk.

MSRP

Collectibility

9/10

Holy Grail

3-Year Forecast

US$383,250

+99%

5-Year Forecast

US$484,279

+152%

Estimates based on 6 verified United States sales.

Market scores

50

Desirability

Thin

30

Liquidity

Excellent

85

Resale Outlook

Marque analyst note

The Buick GNX has climbed to a median price of $192,500, up 24.9% over the past twelve months, signaling sustained appreciation in a market where liquidity remains constrained by the model's extreme rarity. With only 547 examples produced, the GNX occupies a "Holy Grail" tier of collectibility that commands consistent premiums whenever examples trade.

Recent transaction activity reflects the broader uptrend, though the thin liquidity profile—six sales tracked over a twelve-month period—means individual transactions can move market signals meaningfully. The absence of active listings underscores how seldom these cars appear for sale, a dynamic that typically supports price floors during market downturns.

Mileage on transacted examples has averaged 8,000 miles, well below the norm for 1980s-era collector cars and indicative of the preservation standard buyers expect at this price point. Low mileage paired with the model's engineering pedigree and twin-turbocharged performance credentials continues to drive collector interest.

Base projections suggest the median could reach $383,250 within three years, representing a near-doubling from current levels, with five-year appreciation tracking toward $484,279—a 151.6% gain. These trajectories assume continued scarcity, stable condition benchmarks, and sustained demand among a collector base that views the GNX as a conclusive 1980s muscle-car statement.

The "Hold or Wait" signal reflects medium confidence in the persistence of this trajectory; the thin transaction pool makes longer-term directional calls inherently less certain. Buyers seeking exposure should be prepared for illiquid holding periods and the reality that finding an available example at any price may prove as challenging as timing the market itself.

Depreciation Benchmark

  • Current avg valueUS$192,500
  • Annual appr. rate+24.9%/yr
  • Segment average+3.0 to +9.5%/yr
This model holds value better than its segment average — strong long-term hold.

Vehicle History Signals

  • Auction lots tracked7
  • Damage or salvage declared0 (0.0%)
  • No damage declared7 (100.0%)
No damage or salvage declarations found in the titles and descriptions of the auction lots we track for this model. That's a good sign, not a guarantee — always commission a professional inspection and history check before buying.

Est. Annual Ownership Costs

  • Insurance (agreed value)US$1,540
  • MaintenanceUS$3,220
  • StorageUS$3,220
  • Depreciation— (appreciating)
  • Total annual costUS$7,980
This car has historically appreciated — carrying cost is offset by value growth, not eroded by depreciation.

Market Liquidity

  • Active Listings0
  • Sales Last 12 Months2
  • Sell-Through33%

Market Snapshot

  • Active Listings0
  • Avg Sale PriceUS$164,000
  • Avg Mileage at Sale8,000 mi
  • Recent Price RangeUS$110,000 – US$225,000
  • Total Sales Tracked6

Recent sales

Showing latest 6
  • US$225,000

    Bring a Trailer · 6 Jul 2026

  • US$192,500

    mecum · 18 Jan 2026

  • US$143,000

    mecum · 7 Sept 2024

  • US$110,000

    mecum · 27 Jul 2024

  • US$121,000

    mecum · 20 May 2023

  • US$192,500

    mecum · 15 Jan 2023

Indicative only — not investment advice. Past performance is not a reliable indicator of future value.