Cadillac STS
Launched in 2005, the STS was Cadillac's rear-wheel-drive contender against German sport sedans, offering sharp styling and V6 or Northstar V8 power. It's best known to collectors for the hand-built, supercharged STS-V model.
Find one with Spotter →Cadillac STS sold for a median of $7,601 over the last 12 months, based on 15 auction sales; the middle 50% sold between $4,651 and $10,900. 319 currently for sale.
The Cadillac STS arrived in 2005 as a replacement for the Seville, moving to the new rear-wheel-drive Sigma platform. It signaled Cadillac's intent to compete directly with German sport sedans, offering a choice between a 3.6L V6 and the 4.6L Northstar V8. The STS featured sharp, modern styling and advanced technology for its time, including available Magnetic Ride Control and all-wheel drive.
The collector highlight of the lineup is the STS-V, produced from 2006 to 2009. It packed a hand-built, supercharged 4.4L Northstar V8 good for 469 horsepower, paired with Brembo brakes and a strengthened chassis. With only about 2,500 built, the STS-V is a rare and potent American performance sedan that offers a unique alternative to an AMG or M-car from the same era.
Today's market sees standard STS models as affordable luxury cruisers, often trading for under $15,000. Their value proposition is high for a RWD V8 sedan. Pristine, low-mileage STS-V examples command the highest prices and represent the most collectible variant, while base models with high mileage make up the lower end of the market.
Buying Tips
- Check the 4.6L Northstar V8 carefully for any signs of overheating or coolant loss, as head gasket issues can be a concern.
- Verify all electronics work as intended, from the infotainment screen to the keyless entry system, as repairs can be costly and complex.
- On STS-V models, listen for excessive noise from the supercharger and inspect the expensive Brembo brake components for wear.
- Inspect the optional Magnetic Ride Control shocks for leaks, as replacements are expensive.
- Check for water ingress in the trunk and passenger footwells, often caused by clogged sunroof drains.
Prices range from $250 for project cars to $25,500 for top-spec variants.
1,369 Cadillac STS vehicles have been tracked across auctions and listings on Hypercars, with 319 currently live.
Data sourced from Bring a Trailer, Cars & Bids, eBay Motors, PCarMarket, and Collecting Cars. Updated daily.
Frequently Asked Questions
How much does a Cadillac STS cost?
Over the last 12 months, Cadillac STS sold for a median of $7,601 across 15 auction sales tracked on Hypercars; the middle 50% sold between $4,651 and $10,900. There are 319 currently for sale.
How many Cadillac STS listings are for sale right now?
There are 319 Cadillac STS listings currently live across auctions, dealers, and marketplaces tracked by Hypercars.