There's a really good amount of space inside the car. Up front was very roomy, with lots of air between our heads and the roof and plenty of leg space. You certainly don't feel cramped in this car.
My two children aged five and seven also had lots of room in the back to climb around and settle in.
They were far enough apart to help prevent bickering (we all know how close quarters can be conducive to sibling fights!), and you are able to fit a third child seat in the middle if you have three kids in car seats.
And the boot is huge. At 603L (up to the cargo cover), it will fit a pram, sporting equipment, pretty much all you need. There are also two hidey holes in each side of the boot for loose extras.