We have a Captiva and have both a Maxirider and another Safe N Sound reversible (both forward facing) seats in at the moment, TBH I have no idea how we would fit a third seat in as there's not much room left. And the ambo guy who installed the bub capsule way back when DS2 was a newborn reckoned the middle seat belt in the Captiva was off-centre and therefore not suited to 3 seats. Just one opinion though I guess. I just figure that if I have to put a third car seat in the back we'd have to find slim-line seats.