The Flying Spur is essentially a four-door version of the Continental GT, which has design cues from the EXP 10 Speed 6 concept unveiled at the 2015 Geneva Motor Show. It's safe to assume that the next-gen Flying Spur will get the same treatment as well.
Other than the fender flares, the prototype is identical to the Panamera Turbo. So how do we know that this is Bentley's prototype? According to our photographers, the prototype's license plate is registered as a Bentley with the UK's Driver and Vehicle Licensing Agency.
With the Flying Spur sharing the same platform as the Panamera, we expect the luxury sedan to get the same choice of engines, including the twin-turbo 4.0-liter V8 and 2.9-liter twin-turbocharged V6 engine. A concept is anticipated to come out in 2017 with a production variant coming a year later.