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|2015||2015 4dr Sedan turbocharged 259hp 2.0L I4 6-sp shiftable automatic FWD||26.4||
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|With the turbocharged 250hp 2.0L I4 engine, 9-speed shiftable automatic transmission, and front-wheel drive, the 2015 Buick Regal has been averaging 26.4 MPG (miles per gallon).
The 2015 Buick Regals in this analysis were driven mostly on the highway at an average speed of 75 miles per hour (about 80 percent of the miles driven). The rest of the miles were in the city (9 percent), in heavy traffic (1 percent), and in the suburbs (0 percent).
In addition, the average 2015 Buick Regal in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time.