Family with 3 children – Prius or Auris Touring?

Hi together. After you have decided in Cologne also a driving ban and we live in the Cologne environmental zone, we consider ourselves from vehicles from the VW group to turn away and buy a Toyota hybrid, because I stumbled while researching about many positive experiences and facts. Since we have 3 children (11, 7, and 5) should have the new car for 2 child seats and some space in the trunk. Background is that besides the children, who always want to take something with me, I am still volunteer child football coach and always take materials also with us and it can also be that we drive with the car also times on vacation. Currently we have a VW touran where some things fit in. I am aware that the Prius and the Auris Touring can not keep there completely, because of the other construction and the luggage room form, but it does not have to be exactly so much space. Have I often seen a bit also oriented towards the vehicle lengths: Touran: approx. 4,40m Auris Touring: approx. 4,60m a Prius are about to spend a few of the alternatives, but the good ones 50.