When the kids were little a Citroen Berlingo was perfect. (Peugeot are also Citroen, and do the same vehicle slightly higher specced, possibly).
It's not flashy, far from it. It's not speedy, or smart. But absolutely perfectly functional. It does exactly what it was designed to do, and does it well. Tons of storage in any spare space. Lots of power outlets for the DVD players. Seat back tables for the kids to colour ( and eat) on.