Insurance for a Lamborghini Gallardo Spyder?

I am 18 years old, live in the UK and for my birthday I am getting a Lamborghini Gallardo Spyder. I got my driving licence just after my seventeenth birthday, but have been driving since I was 11 on private land. In the year that I have had my driving licence I have not had any accidents, tickets etc. However, because of my age and the price of the car (�131,000) I am having difficulty finding an insurer. If anyone knows of any companies I could try it would be greatly appreciated.