From the silhouette it’s almost certainly the test car. To begin with from side-on is looks closer to a Range Rover than a Bentayga. Which makes sense as it was originally a boxier Rolls Royce.

And the roof which is a lot lower tilts far more than the Range Rover. The Bentayga tailgate is pushed down and whereas roof is fairly flat, and generally speaking windows are thin in each direction.

The nose which is pretty powerful feels unique. The shape of the exhaust muffler is also on visible.