The outgoing Bentley Flying Spur has its own distinguishable look and shape; Quad headlights up front, a long fullsize sedan body, and a curved rear end with bulbous tail lamps. Certainly then, it looks nothing like the Porsche Panamera you’re seeing in the photo above. Looks like our spies have some explaining to do then.

Up close side shot of the Bentley Flying Spur mule

Apparently the next iteration of the Flying Spur will find itself sharing the MSB-F platform that the current Porsche Panamera is based on. That said, it makes sense to use the car for public road testing purposes – all while wearing the perfect disguise. Our spies were quick to point out that this particular Panamera body was sporting slightly wider fenders from factory and that its plates were based off the UK. The latter being important because a cross check with the Driver and Vehicle Licensing Agency (DLVA) in the UK later indicated this prototype vehicle was registered as a Bentley.

The next-gen Bentley Flying Spur mule conducting wet road tests

Since the Flying Spur is pretty much the sedan version of the Continental GT, it may well be influenced by design cues from the Bentley EXP10 Speed 6 concept as well. Along with its shared platform, the Flying Spur may also take engine options from the Panamera as well. Hopefully however the 6.0 W12 Twin Turbo may still be among the engine choices for the sedan.

Another rear quarter shot of the Bentley Flying Spur mule

Expect a full prototype to reveal itself sometime 2017, and the production model to release sometime 2018 or 2019.