The 2017 Porsche 911 is available as a 2-door, 4-seat coupe. Starting at $159,200, the 2017 Porsche 911 Turbo (PDK) AWD Coupe is powered by a 3.8L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 24-mpg on the highway. The top of the line 2017Porsche911Targa 4 GTS AWD Coupe , priced at $ 138,200 , is powered by a 3.0L , 6 - cylinder engine mated to a manual transmission that returns an EPA estimated 18-mpg in the city and 26-mpg on the highway.