^^^Not nessarilly mate, i was with Elephant since 19 when i got my 16v.........Transfered the 182 insurance over when i turned 21 for the last 2 months of my policy but when i come up for renewal they were much dearer than Admiral and would not match it at all where as it was the otherway round when i was quoting valver insurance.
To give you an idea im 21 with 2 years nc's and no accidents, my own policy, garaged, social and domestic use only, old fella added to the policy.
Elephant = £1250 fully comp
Admiral = £950 fully comp
Being young i dont think you'll get a better quote than form them two companys though, still say you'll be looking at about 1500.
edit-Fuckabout thats alot mate......Dont give up though, there are ways. me and most of my pals have been insured on performance cars since the age of 19 so your bound to find someone willing. Did you get that quote online??