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|2007||2007 4dr Sedan 320-hp 4.6L V8 6-sp shiftable automatic RWD||22||
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|With the engine, transmission, and rear-wheel drive, the 2007 Cadillac STS has been averaging 22 MPG (miles per gallon).
The 2007 Cadillac STSs in this analysis were driven mostly in the city (about 50 percent of the miles driven). The rest of the miles were on the highway at an average speed of 70 miles per hour (27.5 percent), in heavy traffic (2.5 percent), and in the suburbs (0 percent).
In addition, the average 2007 Cadillac STS in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time.