Hi Claire,

You're going to need a much larger car than your Touran, unfortunately. I'd suggest you look at van-based people carriers. The best way to search for these in the Carzone database is to select a minimum of eight seats. Options I found just now include the Citroen SpaceTourer, Ford Tourneo Custom and Nissan Serena. 

Feel free to come back to us if you need more help deciding - make sure you include your budget, though, and your annual mileage so we can best help you.