I'm 25, and I have 4yrs NCB and 0 claims.
I just renewed my z4 3.0i for another 10 months to the tune of almost £750 with Admiral. I only do about 6k/miles per year. A quote at 10,000 was another £200 quid.
That's about £150 more than last year, but I did add protected no claims, and a female driver under 25.
Shopping around for other quotes resulted in £1200+ everywhere for just me on the policy, with no protected no claims - Adrian Flux pretty much laughed at me down the phone when I suggested over a grand was a bit of a joke.
I remember when I was 17, and I thought to myself that one day I wouldn't have to pay crazy insurance costs on cars, and dreaming of the day I was 25 and insurance would be cheap.... looks like it's not going to happen
Also, every time I renew or get a new quote with Admiral, they always ask the value of my car.. so I always give them what it would cost me to get a replacement - so this year I said £9,000. As soon as you've told them that - they reply saying "oh, that's not the book figure we have here - we have £6,000". At which point I politely point out that there isn't a single car for sale at that price, to replace this car would cost £9,000. To which they reply "Oh, Ok - we'll put £9,0000 in". Now I'm guessing they record these calls, and I'm also guessing that if you make a claim they'll go back over them - and at this point if you don't pull them up on under valuing your car then you're going to get owned if they ever have to pay out?