| STS V6 Luxury Sport | 2011 | 3600 ccm | 310 | - | - |
| STS V6 Luxury | 2011 | 3600 ccm | 310 | - | - |
| STS V6 Premium | 2011 | 3600 ccm | 310 | - | - |
| STS V6 Luxury Sport | 2010 | 3600 ccm | 310 | - | - |
| STS V6 Luxury | 2010 | 3600 ccm | 310 | - | - |
| STS V6 Premium | 2010 | 3600 ccm | 310 | - | - |
| STS V8 Luxury | 2010 | 4600 ccm | 329 | - | - |
| STS V8 Performance | 2010 | 4600 ccm | 329 | - | - |
| STS 3.6 V6 | 2009 | 3564 ccm | 298 | 230 | - |
| STS V6 Luxury | 2009 | 3600 ccm | 300 | - | - |
| STS V8 Luxury | 2009 | 4564 ccm | 318 | - | - |
| STS 4.6 V8 | 2009 | 4565 ccm | 319 | 250 | - |
| STS V8 Premium Luxury Performance | 2009 | 4565 ccm | 318 | - | - |
| STS V6 | 2009 | 3599 ccm | 300 | - | - |
| STS | 2008 | 3564 ccm | 300 | - | - |
| STS | 2008 | 3564 ccm | 310 | - | - |
| STS V6 Luxury | 2008 | 3600 ccm | 300 | - | - |
| STS V8 Luxury | 2008 | 4565 ccm | 318 | - | - |
| STS 4.6 | 2008 | 4376 ccm | 466 | - | - |
| STS 4.6 V8 | 2008 | 4565 ccm | 319 | 250 | - |
| STS | 2007 | 3556 ccm | 252 | 229 | - |
| STS | 2007 | 3556 ccm | 262 | 229 | - |
| STS 3.6 V6 | 2007 | 3564 ccm | 302 | - | - |
| STS 3.6 V6 AWD | 2007 | 3564 ccm | 302 | - | - |
| STS V6 Luxury Performance | 2007 | 3556 ccm | 253 | - | - |
| STS V6 Luxury | 2007 | 3556 ccm | 253 | - | - |
| STS 4.6 V8 | 2007 | 4565 ccm | 319 | 250 | - |
| STS V6 | 2007 | 3556 ccm | 253 | - | - |
| STS V8 Luxury Performance | 2007 | 4565 ccm | 318 | - | - |
| STS V8 Luxury | 2007 | 4565 ccm | 318 | - | - |
| STS V8 Premium Luxury Performance | 2007 | 4565 ccm | 318 | - | - |
| STS | 2006 | 3563 ccm | 251 | 229 | - |
| STS | 2006 | 3563 ccm | 261 | 229 | - |
| STS 4.6 V8 | 2006 | 4565 ccm | 319 | 250 | - |
| STS V8 | 2006 | 4556 ccm | 318 | - | - |
| STS | 2005 | 3562 ccm | 250 | - | - |
| STS | 2005 | 3562 ccm | 260 | - | - |
| STS V6 | 2005 | 3564 ccm | 255 | - | - |
| STS V8 | 2005 | 4565 ccm | 320 | - | - |
| STS V8 AWD | 2005 | 4565 ccm | 320 | - | - |
| STS 4.6 V8 | 2005 | 4565 ccm | 319 | - | - |
| STS 3.6 V6 | 2005 | 3556 ccm | 253 | 229 | - |
| STS | 1989 | 4467 ccm | 180 | 201 | - |
