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|2006||2006 2dr Convertible 310-hp 3.4L H6 6-sp manual RWD||21.4||
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|With the turbocharged 350hp 2.5L H4 engine, 6-speed manual transmission, and rear-wheel drive, the 2006 Porsche Boxster has been averaging 21.4 MPG (miles per gallon).
The 2006 Porsche Boxsters in this analysis were driven mostly on the highway at an average speed of 65 miles per hour (about 62.5 percent of the miles driven). The rest of the miles were in the city (10.5 percent), in heavy traffic (5.5 percent), and in the suburbs (0 percent).
In addition, the average 2006 Porsche Boxster in this analysis was driven on flat terrain with a lead foot and the AC on only some of the time.