Buick GNX
1987–1987
Lowest price
£29,120
Since 2020
Median price
£29,120
Since 2020 · n=1
Highest price
£29,120
Since 2020
Sold cars
1
All time
Sell-through
100%
Of 1 lots
Based on 1 verified auction result
£106,716
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
£212,463
+99%
5-Year Forecast
£268,471
+152%
Estimates pool 7 verified sales across United States, United Kingdom — cross-market prices FX-adjusted at Jul 2026 rates.
Market scores
38
Desirability
Illiquid
10
Liquidity
Excellent
85
Resale Outlook
Marque analyst note
The Buick GNX is trading around £106,716 in the UK market, up nearly 25 percent over the past twelve months. This strong appreciation sits comfortably within the car's longer-term trajectory, though the single transaction tracked over that period warrants caution when reading short-term momentum.
The GNX occupies Holy Grail status among American muscle collectibles, supported by its extreme scarcity: only 547 were built during its 1987 production run. That rarity has sustained consistent demand among a focused buyer base, though the UK market remains thinly traded. The absence of active listings and illiquid trading conditions mean buyers or sellers should expect extended holding periods and negotiation flexibility.
Current UK asking levels reflect the car's documented appreciation arc, with comparable sales data extremely limited. The "Hold or Wait" signal reflects medium confidence given the small sample size, though the trajectory itself remains intact. Mileage data on transacted examples is not available, though condition typically matters as much as provenance for vehicles in this tier.
Base projections suggest the GNX could reach £212,500 within three years and £268,500 within five years, implying near-doubling and near-tripling respectively from current levels. These forecasts rest on sustained collector appetite for pre-1990s American performance icons and the model's unchanged production record. Any shift in demand for 1980s domestic muscle or emerging competition from restoration-grade examples could moderate that path.
Depreciation Benchmark
- Current avg value£106,716
- Annual appr. rate+24.9%/yr
- Segment average+3.0 to +9.5%/yr
Vehicle History Signals
- Auction lots tracked7
- Damage or salvage declared0 (0.0%)
- No damage declared7 (100.0%)
Est. Annual Ownership Costs
- Insurance (agreed value)£850
- Maintenance£2,400
- Storage£2,400
- Depreciation— (appreciating)
- Total annual cost£5,650
Market Liquidity
- Active Listings0
- Sales Last 12 Months1
- Sell-Through100%
Market Snapshot
- Active Listings0
- Avg Sale Price£29,120
- Avg Mileage at Sale—
- Recent Price Range£29,120 – £29,120
- Total Sales Tracked1
Recent sales
Indicative only — not investment advice. Past performance is not a reliable indicator of future value.