As of April 2026, the Buick Grand National/GNX GNX market has 2 active listings across 14 marketplaces tracked by CarSearch.Pro. The median asking price is $1,200, with the middle 50% of listings priced between $1,200 and $1,200. Buick Grand National/GNX GNX prices have decreased 10.7% over the past quarter, from a median sale price of $242,000 to $216,000.
The typical Buick Grand National/GNX GNX on the market has 81,000 miles.
Current Buick Grand National/GNX GNX Pricing
A fair price for a Buick Grand National/GNX GNX in April 2026 is between $1,200 and $1,200 (25th to 75th percentile). Prices range from $1,200 to $1,200 across 2 active listings.
Price Distribution (2 Active Listings)
Percentile
Price
Meaning
10th
$1,200
Budget / project cars
25th
$1,200
Below average price
Median (50th)
$1,200
Typical market price
75th
$1,200
Above average / premium
90th
$1,200
Top tier / low miles / rare spec
The average asking price is $1,200, which is equal to the median, suggesting pricing is relatively symmetrical across the market.
Buick Grand National/GNX GNX Price Trends
Buick Grand National/GNX GNX prices have decreased 10.7% over the past quarter. In 2025-Q4, the median sale price was $216,000 across 3 sales, down from $242,000 in 2025-Q3.
On a year-over-year basis, Buick Grand National/GNX GNX prices are up 62.4% ($216,000 vs. $133,000 a year ago).
Buick Grand National/GNX GNX Quarterly Sale Prices (Historical)
Quarter
Sales
Median Price
Average Price
2024-Q1
2
$199,900
$182,450
2024-Q2
5
$142,000
$154,790
2024-Q3
7
$200,000
$171,286
2024-Q4
2
$133,000
$133,000
2025-Q1
2
$101,987
$101,987
2025-Q2
4
$230,000
$189,999
2025-Q3
6
$242,000
$217,633
2025-Q4
3
$216,000
$215,042
Where to Buy a Buick Grand National/GNX GNX
The highest concentration of Buick Grand National/GNX GNX listings is in PA with 2 active listings.
Top States by Inventory
State
Listings
PA
2
Buick Grand National/GNX GNX Buyer's Guide Summary
Fair price range: $1,200 to $1,200. The median is $1,200. Anything below $1,200 is a strong value; above $1,200 should be premium condition, low miles, or a desirable specification.
Trending down: Buick Grand National/GNX GNX prices have dropped 10.7% recently. Patient buyers may benefit from waiting, but desirable examples still sell quickly.
Best value year: The 1987 model year has the lowest median price at $1,200, making it the most accessible entry point into Buick Grand National/GNX GNX ownership.
Data sourced from 1 marketplaces including eBay Motors, Bring a Trailer, Cars & Bids,
AutoTrader, CarGurus, Cars.com, Facebook Marketplace, Classic.com, and Hagerty Marketplace.
Updated daily by CarSearch.Pro's automated pipeline.
Browse all 2 active Buick Grand National/GNX GNX listings.