A PLUG-IN hybrid version of the Bentley Flying Spur has been revealed as part of the British luxury car maker's strategy to be fully electric by 2030.

The newcomer will have a zero emission range of some 25 miles on a full charge and overall it will be the most fuel-efficient Bentley so far with a full range of more than 400 miles.

The Flying Spur's powertrain uses a 2.9-litre V6 petrol engine mated to an electric motor to develop a combined 536bhp - 95bhp more than the output of the plug-in system used in the Bentayga SUV PHEV.

Performance of the plug-in Flying Spur is on a par with that of the V8 version with a 0 to 60 acceleration time of 4.1 seconds and a top speed of 177mph.

Precise fuel economy figures have still to be released although Bentley says the plug-in hybrid will show a significant reduction in that of the V8 which is rated at 22.2mpg.

Three electric drive modes will be available including one to hold the battery charge until required - enabling the car to operate in low emission zones without penalty.

A full recharge of the battery will take around two-and-a-half hours, says Bentley.

Prices are still to be announced but are expected to be around the £140,000 mark when the car arrives later in the year.