Anybody got a picture of how passenger seat looks like when it completely folded together with rear bench folded as well?

Not sure that superb mk3 has a folding rear bench. (Can't see any mention in the instructions). The backrest just folds over the rear bench with it slightly rising towards the front of the car. Rich 

13 hours ago, Rich2 said:

The backrest just folds over the rear bench with it slightly rising towards the front of the car. Rich 

 

Raising the headrest(s) on whichever part you are folding helps them lie flatter but still not completely flat. That means long items won’t be supported for part of their length so if that is important you need to put something under the item to support it.

unlike the mk2, the rear bench in the mk3 superb cannot be removed - hence the rear seats will never completely fold flat.

 

these the front passenger seat folded, but it is not an electric seat.