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|2012||2012 4dr Sedan turbocharged 402hp 4.7L V8 7-sp shiftable automatic AWD||24.8||
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|With the twincharged 362hp 3.0L I6 Hybrid engine, 9-speed shiftable automatic transmission, and all-wheel drive, the 2012 Mercedes-Benz CLS has been averaging 24.8 MPG (miles per gallon).
The 2012 Mercedes-Benz CLSs in this analysis were driven mostly on the highway at an average speed of 75 miles per hour (about 90 percent of the miles driven). The rest of the miles were in the suburbs (0 percent), in the city (0 percent), and in heavy traffic (0 percent).
In addition, the average 2012 Mercedes-Benz CLS in this analysis was driven on flat terrain with a lead foot and the AC on most or all of the time.