i had the pleasure (not) of being a passenger in my own van ('08 2.4 115ps) yesterday and bloody hell those seats are uncomfortable! The backrest is just too straight up, was only a 20 mile run but I was in pain by the end of it! I now understand why the lads at work complain about it.
Are yours the same? Is there any way to adjust them? The bulkhead looks quite close behind the seats.
Gareth