Interest in a Grand Picasso, but questions

Dear motor-talk-community, since it is becoming really too small with our children in the Opel Astra G, we think about changing to a family van. I am absolute layman, but I am interested in the Grand Picasso, because I place more value on a large interior and the comfort, but do not need a sporty car. Since we drive longer distances more often, diesel would be important to me and my wife insists on automatic. Now I have found two offers based on these wishes, which I for Both are the first version of the Grand Picasso (2009/2013), have run 80,000 km and cost between 6,000 and 9,000 €. That would be about our maximum budget. Would it make sense to look for a newer car with more kilometers, or is the version more recommendable before 2014. What exactly is the difference between the normal and the exclusive version? Apart from a panoramic window and a DVD player, I didn’t notice anything? f do I link the two offers that interest me? Thank you for all the potential answers! Best regards Tim