What's a sensible warm hatch to replace my Audi TT?

I currently drive an Audi TT, which I really enjoy, however it's no longer compatible with having two children. I would like a reasonably powerful hatchback, probably 2-3 years old and safe for the kids....

Is there a 'warm' hatch for an 18 year old that won't be ruinously costly to insure?

Our 18-year-old daughter is angling for her own car and would like something 'more interesting' (i.e. faster) than her mother's three-cylinder 1.0 litre Hyundai i10, in which she's to date been a secondary...