
Set 42138
Trading 36% under its $50 retail price even after retiring — the market has had its say.
LEGO 42138 Ford Mustang Shelby GT500 is worth about $31.90 sealed right now, based on 14 recent sealed sales. That's 36% below its $49.99 retail price. It came out in 2022 with 544 pieces. It was retired in Jan 2025. Over the last 82 days its typical asking price has fallen 8%, from $35.00 to $32.22. We last checked it 9 days ago.
Retired 2 year ago and still under retail. The market has had its say on this one.
If you bought it to resell
For a 30% return at your costs. Change them and every figure on the site follows.
What it actually sold for
Sellers are asking 1% more than buyers actually paid. The $32 figure above is a ceiling; this is the floor to negotiate toward.
Completed BrickLink transactions over the last six months. Real sales, not asking prices.
eBay links are affiliate links — if you buy after clicking, we earn a small commission at no cost to you, and that is what pays for the site. BrickLink has no such programme, so those are plain links. Neither changes what we show or what we say about it.
How to read this. The value is the median of live sealed listings, after removing instructions, empty boxes, used sets, multi-set lots and implausible outliers. Real sale prices usually land below asking, so the buy-below figure is deliberately the conservative end of the range.
▲ 28% vs retailRetired42139 · 2022All-Terrain VehicleTechnic · 764 pcs$11519 listings · retail $90Flat since retirement
▼ 30% vs retailRetired42137 · 2022Formula E Porsche 99X ElectricTechnic · 422 pcs$3534 listings · retail $50Below retail
▲ 57% vs retailRetired42140 · 2022App-Controlled Transformation VehicleTechnic · 772 pcs$2353 listings · retail $150Not enough data
▲ 43% vs retailRetired42136 · 2022John Deere 9620R 4WD TractorTechnic · 390 pcs$5034 listings · retail $35Flat since retirement