Bentley unveils its fastest four-door sedan 
British automaker Bentley has unveiled 'Flying Spur W12 S', its fastest four-door sedan, with a top speed of 325 kmph. Powered by a 6.0-litre W12 engine, the luxury sports sedan produces 626hp and can accelerate from 0-100 km in 4.5 seconds. While the price of the W12 S model has not been announced, entry-level Flying Spurs start at over $200,000.