5008 Used purchase, what should one pay attention to?

Hello, the 3rd child is in front of the door and my wife and I soon need a car with 3 single seats for the Kiddys in the back. There is now the preselection actually already on the Peugeot 5008. We will soon look at some used ones in the area. Kilometers will be with the selected under 50000 are rather at 25000. Motor probably at 130 hp 1.2er also because of the price. 180 diesel is not possible, because profile is not right next to the price. Most of the way will be short distance, because the 1st year parental time is my wife and the kindergarten is only 1.5 km away. So not diesel suitable. Otherwise we will of course drive with it on holiday and visit well-known family. At the weekend more tours with longer driving time. At the moment I have these on the list: 5008 with leather 4 years5008 without leather 2 years Now the question is whether 5 seaters or 7 seaters? Is the luggage room with the 5 seater larger? What should I look at before the purchase and test out? Where are known defects/ defects?