Hello, I would like to buy a used car in the near future and have enough space for the planned child, therefore the combination models. I would like to buy the two models from the manufacturers so a young star or Audi used car plus are similarly expensive in the purchase. Now I have been standing between the two mentioned models (diesel) for a long time. I have no idea about the space available, the appearance and the maintenance costs of the cars! I also turn to you here, because on the Internet there are only comparisons of the respective class and here upper class on middle class trift. Can you tell me a purchase recommendation with the pros and cons of the models. LG