According to official Bentley web:
The 6-litre, twin turbo charged W12 engine produces 640PS (631bhp / 471kW). 0-60mph in 3.8 seconds (0-100km/h in 4.0 seconds) and from a standing start it reaches 100mph in a blinding 9.5 seconds. A limited run of only 100 of the dramatically styled supercar will be built at the home of Bentley, Crewe. The most powerful Bentley ever made. Enjoy ;)