Volkswagen Group is keeping their momentum going with a wave of new cars from their luxury brands. It is now the turn of Bentley to get yet another all-new model. Our spies managed to snap photos of what appeared to be an oddly proportioned Porsche Panamera. Upon closer inspection however, it turns out to be the test mule for the 2019 Bentley Flying Spur.

The Flying Spur is the British marque's F-Segment sedan and the nameplate has been around since 2005. The current model has been around since 2013 and has been receiving new variants since then. It slots below the Mulsanne, Bentley's largest F-Segment offering.

Spied: Bentley prepares third-generation Flying Spur

For the all-new Flying Spur, it will be sharing its chassis with the recently launched Panamera. It rides on the MSB-F architecture but its wheelbase will be extended to suit the purpose, and market, of Bentley customers. This is evidenced by the longer plastic rear doors on this test mule. Being a test mule, the car you see here is far from its final design. Expect the production model to get elements from the EXP10 Speed 6 concept from a few years ago.

Rear quarter of the all-new Bentley Flying Spur test mule

Aside from its architecture, little is known about the all-new Flying Spur. At the same time, Bentley is also testing the next-generation Continental GT, the car the Flying Spur has traditionally been based upon. This suggests that the of the Flying Spur development is nearly parallel with the two-door grand tourer.

Engines are also unknown at this point in time. Sticking to the current formula, it is likely that it will be available with either a twin-turbo V8 or twin-turbo W12 mill. It is also possible that it will get a highly tuned version of the Panamera's V8 powerplant.