For those who don't feel the standard Bentley Continental Flying Spur model is fast enough for you, don't worry because Bentley has you covered. The Flying Spur Speed is essentially the Bentley Continental GT with an extra foot added to the wheelbase and an additional 48 horsepower. It has all-wheel drive and a tuned suspension to handle the extra weight. It shares many underlying components with the Volkswagen Phaeton, which didn't sell well in the US.
However, if you truly desire a four-door Bentley that is modern and built on its own unique chassis, then be sure to look into the upcoming all-new Bentley Mulsanne, which is set to debut sometime in 2010.