Cadillac STS (2005–2007)
Midsize Cars1st generationgas13.1 cu ft max
6
VE SCORE
Below average Volumetric Efficiency for a midsize cars — cargo volume × EPA MPGe, ranked against class peers.
Storage spaces
Trunk with rear seats folded
estimatedestimated from model knowledge — unverified
Trunk (seats up)
estimated| Volume | 13.1 cu ft · 371 L |
estimated from model knowledge — unverified
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Fuel economy (EPA)
| Trim | Years | Fuel | Best combined MPGe | City | Highway |
|---|---|---|---|---|---|
| RearWD · Automatic (S5) | 2005–2007 | Regular Gasoline | 19 | 16 | 25 |
| 4-Wheel or AWD · Automatic (S5) | 2005–2007 | Regular Gasoline | 18 | 15 | 23 |
| RearWD · Automatic (S6) | 2007 | Premium Gasoline | 18 | 15 | 24 |
| 4-Wheel or AWD · Automatic (S6) | 2007 | Premium Gasoline | 16 | 14 | 21 |
| V · RearWD · Automatic (S6) | 2006–2007 | Premium Gasoline | 15 | 12 | 19 |