They're not that cheap. I've tried all sorts for quotes and the cheapest for me (22, license for 2 years) is a Vauxhall Corsa 1 litre (2001-2003 age). The only other car where quotes have been close to the Corsa was a Seat Arosa. :shrug:
I'm looking at getting my insurance from Tescobank, their blackbox service. I'll probably use it for 2 years until I'm 25 and hopefully have 2 years NCD. :D