The 2020 Porsche 911 is available as a 2-door, 4-seat coupe. Starting at $113,300, the 2020 Porsche 911 S RWD Coupe is powered by a 3.0LL , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 24-mpg on the highway. The top of the line 2020Porsche9114 AWD Cabriolet , priced at $ 117,500 , is powered by a 3.0LL , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 24-mpg on the highway.