The 2000 Porsche 911 is available as a 2-door, 4-seat coupe. Starting at $65,590, the 2000 Porsche 911 RWD Coupe is powered by a 3.4L , 6 -cylinder engine mated to a manual transmission that returns an EPA estimated 17-mpg in the city and 25-mpg on the highway. The top of the line 2000Porsche911AWD Cabriolet , priced at $ 80,400 , is powered by a 3.4L , 6 - cylinder engine mated to a manual transmission that returns an EPA estimated 17-mpg in the city and 24-mpg on the highway.