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Cadillac STS

Cadillac

Cadillac STS: Rear-drive luxury sport sedan (2005-2011). Northstar V6 or V8, the larger sibling to the CTS.
Photo: IFCAR / Wikimedia Commons · Public domain

Rear-drive luxury sport sedan (2005-2011). Northstar V6 or V8, the larger sibling to the CTS.

The Cadillac STS was a rear-drive luxury sport sedan that sat above the CTS, offering Northstar V6 and V8 power with available all-wheel drive. It blended Art and Science styling with a more traditional luxury focus, competing against mid-to-full-size German and Japanese sedans. A high-performance STS-V used a supercharged Northstar V8. On WhipJury, the STS appears as a comfortable, rear-drive used luxury sedan with available V8 power.

STS specifications

3.6 liter V6 or Northstar 4.6 liter V8 (supercharged in the STS-V). Rear-wheel drive or AWD. Automatic. Mid-to-full-size luxury sport sedan.

Frequently asked questions about Cadillac STS

Is the STS rear-wheel drive?
Yes, rear-wheel drive with available all-wheel drive, distinguishing it from Cadillac front-drive DeVille and DTS sedans of the period.
What is the STS-V?
The high-performance STS, using a supercharged Northstar V8 with around 469 horsepower, a rare and powerful V-series luxury sedan.
Is the STS reliable?
Generally acceptable. The V6 is reasonably robust; the Northstar V8 requires cooling-system diligence to avoid head gasket issues.
Where did the STS sit in the lineup?
Above the CTS, as a larger rear-drive luxury sport sedan, below the full-size flagship offerings.
What replaced the STS?
The XTS and later the rear-drive CT6 covered the larger-sedan roles after the STS was discontinued.

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