Surprisingly spacious inside, fits two large carseats, but you wouldn't probably get anyone else in the back. But, in general a great little runaround for two adults & two kids. Spacious interior, decent legroom, good sized boot. And as my husband always says when he drives it, the seats have good support, and it feels like they're giving you a hug!
One down side is the lack of power (but with that comes the cheaper roadtax), it is just something to be aware of when pulling on to a fast road or overtaking.