Does anyone have any experience of seven-seater cars? My two are quite young, but I need the extra seats in the back for my nieces and nephews - 9-16 years old. I love the new Nissan X-Trail - www.carbuyer.co.uk/reviews/nissan/x_trail/suv/video#video - but the women in the video makes it look like quite a squeeze. I'm loathed to buy something like the Ford S-MAX, but thinking there may be no alternative.