The new Bentley Bentayga S, powered by a 542 horsepower 4.0-liter twin-turbo V8 engine, is the fourth model in the Bentayga line-up joining the plug-in Hybrid, the 4.0-liter turbocharged V8 and the 6.0-liter 12-cylinder Speed. For the first time since the launch of Bentayga in 2015, an S version is now available.