My G hasn't been insured for years now, but Brentacre were by far the best for me then (7/8 years ago), all mods disclosed. They are local to me so I often dealt face to face, usually with John.
I did actually insure the Polo for the last 3 months, I had a Sierra XR4i and when I sold it I thought I may as well transfer it, just as lay up cover. The renewal quote was £171 fully comp, £2k value and mileage limited to 3k. Not much use to me really, as I only told them about the wheels and suspension, and the car will be my daily so 3000 miles is no good. Not to sure if no claims came into it either, the Sierra was 2nd car and my bonus was already used on my Golf.
Peter James Insurance, 0121 506 6040,
www.peterjamesinsurance.co.ukThey were by far the best price for the Sierra, half as much as the next best.
Oh, and I'm 33 by the way.