DETROIT, Michigan – Bentley is debuting its fastest flagship yet, the Mulsanne Speed, at the 2015 Detroit auto show. Alongside the new model will be the Continental GT Speed Convertible and the Flying Spur.The Mulsanne Speed is powered by a 395kW/1100N. six-litre, twin-turbo V8 that can blast the sedan to 100km/h in in 4.8sec and on to 305km/h. Compared to the standard version, the Mulsanne Speed gains dark-tinted accents and a sportier exterior detailing. It will be in showrooms in the first months of 2015.BENTLEY SALES RECORDWheels24 has already reported that Bentley recorded its highest sales record yet with more than 11 000 units sold in 2014, a nine percent increase over 2013. New models launched in 2014 were critical to its success including the Continental GT V8 S, Flying Spur V8 and the fastest production Bentley yet, the Continental GT Speed. Wolfgang Dürheimer, chairman and chief executive, commented: “We are starting 2015 in a strong position and I'm delighted to showcase our latest models her in Detroit. The US remains our largest market, accounting for nearly 30% of our business, but we saw an increase in customers all over the world in 2013.”NEW SUV NAMEDBentley’s first luxury SUV will be revealed later in 2015 but ahead of it's official launch the automaker has (finally) chosen a name - the Bentayga.This "sector-defining SUV", the automaker says, will be introduce Bentley’s "renowned modern British luxury to limitless destinations with an impressive combination of on and off-road performance".Bentley means, we believe, that the Bentayga will have go-anywhere properties - after all, its named for a dead volcano in the Atlantic Ocean's Carnary Islands.