Why are "family cars" big? Surely smaller cars are better suited.
Large cars mean large boots, forcing you to carry far too much "kid crap" everywhere with you.
Also large cars have a lot more rear leg room, putting the kids out of slapping range. :( How are you supposed to maintain discipline? By text?
I would suggest a much better family car would be a motorbike and sidecar. You would have to wear a helmet, so you don't have to hear the incessant "are we nearly there yet?" or "I need the toilet". Also, only room for one passenger, so no more arguments. The others can get the bus.