Learner car & Trackday Fun Car Suggestions

[jamie-hw314]

I have twin girls looking to start driving soon, and rather than get bled dry by paying for 2x lots of driving lessons though it may be a good option to give them some road time behind the wheel myself by getting a smaller car which all seem to be cheap enough to insure for learners. Obviously this has now opened up pandoras but with me now looking at a small car which could double as a Trackday toy too.
So budget is really up to circa 10k and as new and low mileage as possible and was convinced on an abarth but being a tall fella I may look a bit of a dick. Any suggestions welcome as I feel like I've gone car blind looking!

[jamie-hw314]

To clarify its only for them to get some time behind the wheel theyll be have driving lessons too