The 2008 Bentley Continental GT is available as a 2-door, 4-seat coupe. Starting at $175,990, the 2008 Bentley Continental GT Base is powered by a 6.0L , 0 -cylinder engine mated to an automatic transmission that returns an EPA estimated 10-mpg in the city and 17-mpg on the highway. The top of the line 2008BentleyContinental GTSpeed , priced at $ 199,990 , is powered by a 6.0L , 0 - cylinder engine mated to an automatic transmission that returns an EPA estimated 10-mpg in the city and 17-mpg on the highway.