In reply to Tiggs:
> (In reply to HC~R) We'll be adding both parents onto his insurance to see what happens!
Although it is about 10 years since we were in this position, I wouldn't recommend putting both parents on as named drivers. Putting my wife on as a named driver (without any no claims of her own, though 20+ years driving) reduced the premium. Putting me on (over 20 years claim free, 25+ years driving) put it up. The important test if you are thinking of insuring in your own name seems to be do you have access to another car? If so, insurers think it will be mostly used by the younger driver and charge accordingly.
Second time we did this we bought a cheap to insure car from a dealer which came with a deal for insurance at £150 for anyone over 18 and one years years renewal at guaranteed max NC discount, so he didn't have to pay market rate till the third year - two years older, two years NC.
We also made them pay their own insurance at all times, seemed to make them more responsible and didn't start till 19, when they seemed much more mature than at 17.
HTH