It says in our book that you can although for reasons of safety they recommend that the child safety seat be installed on one of the outboard seats in the second row of seats. Ours has three full seat belts in the second row of seats.
Thanks for that . We have a Picasso at the moment that we love but the 2 older ones bickering in the car is driving me to distraction so i am looking for something big enough for us that i can safely put a child seat in the middle .