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|2014||2014 4dr Sedan, ext. turbocharged 420hp 4.0L V8 8-sp shiftable automatic AWD||17.54||
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|With the turbocharged 420hp 4.0L V8 engine, 8-speed shiftable automatic transmission, and all-wheel drive, the 2014 Audi A8 / S8 has been averaging 17.54 MPG (miles per gallon).
The 2014 Audi A8 / S8s in this analysis were driven mostly on the highway at an average speed of 75 miles per hour (about 22.3 percent of the miles driven). The rest of the miles were in heavy traffic (16.7 percent), in the suburbs (0 percent), and in the city (0 percent).
In addition, the average 2014 Audi A8 / S8 in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time.