2011 Cadillac STS: What's New, Specs & Features
Last updated August 4, 2026
The biggest change for the 2011 Cadillac STS is the loss of the Northstar V8, leaving every model with a 302-hp V6. Otherwise, this final-year STS is largely unchanged.
About the 2011 Cadillac STS
2005-2011 STS generation, post-2008 refresh, final U.S. model year before discontinuation.
Cadillac positioned the STS as a luxury sport sedan that blended sharp styling, a strong V6, and a quieter, more comfort-focused cabin than many European rivals. The brand’s own brochure frames it as the meeting point between performance and sophistication, while contemporary reviews describe it as Cadillac’s rear-drive-based midsize sedan with a more athletic feel than the DTS. Its core appeal is traditional luxury features wrapped around a driver-focused layout.
The 2011 STS is a straightforward luxury sedan with a sporty, rear-drive-based feel. Its standard equipment includes leather seating, keyless entry and push-button start, dual-zone climate control, Bose audio, and rear parking sensors.
What changed, by category
2011 Cadillac STS specs and features by trim
| Feature | |
|---|---|
| Engine | V6, 3.6 Liter |
| Transmission | Automatic, 6-Spd w/Overdrive |
| Drivetrain | RWD |
| Fuel Type | Gas |
| MPG City | 18 mpg |
| MPG Highway | 27 mpg |
| Horsepower | 302 hp |
| Torque | 272 lb-ft |
| Max Towing | 1000 lb |
| Trunk/Cargo | 13.8 cu-ft |
| Rear Legroom | 38.3 in |
| Seats | 5 |
| Doors | 4 |
| Blindspot Sensors | |
| Lane Departure Warning | |
| Alloy Wheels | |
| Fog Lights | |
| Power Moonroof | |
| Rear Spoiler | |
| Bluetooth | |
| Navigation System | |
| Premium Audio | |
| Satellite Radio | |
| Dual-Zone Climate Control | |
| Heated Front Seats | |
| Heated Steering Wheel | |
| Leather Seats | |
| Remote Start | |
| Ventilated Front Seats | |
Frequently asked questions
Does the 2011 Cadillac STS have a V8?
No. Cadillac dropped the Northstar V8 for 2011, so every STS from this model year has a 302-hp 3.6-liter V6.
What engine is in the 2011 Cadillac STS?
The 2011 Cadillac STS has a 302-hp 3.6-liter direct-injection V6 paired with a six-speed automatic transmission.
Was Bluetooth standard on the 2011 Cadillac STS?
No. Bluetooth was optional for 2011 after being standard for 2010.
Was the 2011 Cadillac STS redesigned?
No. The 2011 STS carried over without a redesign or major styling, safety, or chassis update. Its main change was the move to a V6-only lineup.
Was 2011 the final year for the Cadillac STS?
Yes. The 2011 model was the final U.S. model year for the Cadillac STS before it was discontinued.