Part of the 400 family · 1 for sale · 4 auction results · latest Apr 15, 2026
The median auction sale for the Buick GS 400 Stage 1 was $39,000 over the last three years. The median asking price is $44,900.
Where Buick GS 400 Stage 1 prices are heading, quarter by quarter.
Every sale and listing by mileage, the middle 50% of prices and how much 10,000 miles take off.
The state map, Buick GS 400 Stage 1s listed below market now, every model year's sales and asking prices, and the latest results.
