12 more sales on record. Join free to see every sale and its price.
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Answers
Questions buyers ask about the Cadillac STS (Sigma)
Answers from GarageScout's own listing and sale records.
What is the current market price of a Cadillac STS (Sigma)?
Price depends on the variant; no variant has 3 or more recorded sales in the trailing 12 months yet.
How many Cadillac STS (Sigma) examples are currently for sale?
As of September 23, 2026, there are no verified Cadillac STS (Sigma) examples actively listed across monitored specialist dealers or auctions. Enthusiasts can start a GarageScout Hunt to be alerted the moment a matching example hits the market.
How many Cadillac STS (Sigma) cars sold in the last 12 months?
GarageScout recorded 7 sales of the Cadillac STS (Sigma) in the trailing 12 months, counting confirmed sales only. Restomods, gearbox conversions and sales priced like deposits or placeholders are left out.
Where do Cadillac STS (Sigma) cars sell?
Of the 7 sales GarageScout recorded in the trailing 12 months, 6 on Bring a Trailer and 1 on Barrett-Jackson.
Where does GarageScout's Cadillac STS (Sigma) market data come from?
GarageScout's Cadillac STS (Sigma) figures come from the listings and sales it has recorded on Bring a Trailer, Cars & Bids and Barrett-Jackson. Repeat sales of one car matched by VIN count once, and a median sale price is stated only where 3 or more sales in the trailing 12 months back it.