Misallocation

1970 Buick GS Stage 1 Convertible

Sold at Mecum Auctions on Jan. 16, 2026.

$184,250Confirmed

The price as reported by the house. Hammer price $167,500, before the buyer's premium. Read from the house's results Oct. 14, 2026.

Photo: Mecum Auctions

The car

Year
1970
Make and model
Buick Skylark, GS and GSX
Generation
Skylark and Gran Sport 1965 to 1972
Version
GS 455 Stage 1
Gearbox
Manual
Condition
Excellent (2)Likely

Condition is our reading of the listing's description on Hagerty's 1 to 4 scale, not an inspection.

Against comparable sales

Above the middle half of 25 comparable sales, 104% over its top.

Middle half of sales$50,000 to $82,000
Median$70,000
Sales behind it25Likely

From 25 sales of the Buick Skylark, GS and GSX GS 455 Stage 1 (Skylark and Gran Sport 1965 to 1972) in our data over the last 24 months. Hammer prices, before buyer's fees. Half sold between $50,000 and $82,000.

Closest sales

Closest comparable sales
CarAuctionDatePrice
1970 Buick GS Stage 1Mecum, Jan. 10, 2026MecumJan. 10, 2026$74,000
1970 Buick GSX Stage 1Mecum, Nov. 1, 2025MecumNov. 1, 2025$180,000
1970 Buick GS Stage 1 ConvertibleMecum, Jan. 17, 2025MecumJan. 17, 2025$175,000
1970 Buick GS Stage 1 CoupeMecum, Jan. 16, 2025MecumJan. 16, 2025$42,000
1970 Buick GS 455 Stage 1 Coupe 4-SpeedBring a Trailer, Dec. 23, 2024Bring a TrailerDec. 23, 2024$41,500
1970 Buick Gran Sport Stage 1 ConvertibleRM Sotheby's, Oct. 8, 2026RM Sotheby'sOct. 8, 2026$130,000
1969 BUICK GS400 STAGE 1Barrett-Jackson, June 27, 2026Barrett-JacksonJune 27, 2026$73,000
1970 Buick GS Stage 1 ConvertibleMecum, May 15, 2026MecumMay 15, 2026$61,000