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    2005-2011

    2005 Model Redesign Year
    The STS started out as an up-level trim of the midsized Seville, with a strong 4.6-liter V8, traction control, and an active suspension system. The STS accelerated faster than many of the performance cars of its day and even carved relatively crisp corners. However, in exchange for the better than average handling, it didn't ride particularly well. For 2005, Cadillac renamed the Seville the STS and switched to rear- or all-wheel drive, turning it into a genuinely competitive sports sedan. Power came from a 255-hp V6 or an ultra smooth 320-hp V8. The ride is firm but supple.
    The car is fun to drive and handles well, but rear-seat room is relatively tight and the interior doesn't measure up. The STS-V is a quicker supercharged version. Model year 2008 brought a 3.6-liter V6 as well as a few interior updates and 2011 was the final year.
    2011 Cadillac STS
    Retail Price
    $4,800
    EPA MPG
    20 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    2010 Cadillac STS
    Retail Price
    $4,300 - $4,825
    EPA MPG
    20 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    2009 Cadillac STS
    Retail Price
    $3,750 - $7,850
    EPA MPG
    20 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    2008 Cadillac STS
    Retail Price
    $3,325 - $7,100
    EPA MPG
    20 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    2007 Cadillac STS
    Retail Price
    $3,175 - $6,525
    EPA MPG
    20 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    2006 Cadillac STS
    Retail Price
    $3,400 - $6,625
    EPA MPG
    20 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    2005 Cadillac STS
    Retail Price
    $3,300 - $3,350
    EPA MPG
    20 mpg
    Reliability Verdict
    NA 
    Owner Satisfaction
    NA 
    Shop Local Inventory
    cr-trademark

    Auto Test Center

    Precision testing comes standard at our 327-acre auto test center.

    TESTING LIKE NOBODY ELSE

    50+

    tests are conducted on every car we buy.

    PERFORMANCE TESTING

    6

    miles of track for testing acceleration, ride, handling, braking, and advanced driver assist systems.

    TIRE TESTING

    400

    tires tested a year for all-weather grip and rolling resistance.