Im 25 and have 3 years no claims and i am paying £840 with admiral too. I've just replaced a w reg pug 306 and its only costing me £200 a year more.
Iv been with admiral before and bell witch is part of the same group, and had to make a claim with both. And apart from trying to get a accurate valuation for my silvia (which was a fairly rare import) which i wrote off there were really good.