i agree vinalspin, like the c4 grandpicasso i had if your making it for 7 seats it needs a flat back to give you the room for 7 plus luggage. the c4 was brilliant as the seats all went flat and the load area was then like a transit.
and yet it had really comfy seats and drove really well.
thats what the 5008 needs to be aiming for, leave the sporty suv bit to the 3008.