I have just had two good quotes from Chris Knott and started both with them.

Third car on the horizon on which they will mirror my full no claims - although they did admit that M5's were not their thing and hence the quote was a bit higher than other when compared with full NCB.

so Chris Knott has been good for me - but my cars are not classics but newer high performance cars.

as usual with insurance different companies have preferred risks.

I found it cheaper to insure my cossies including a 3dr as normal value cars - they still have to pay 'market value' so unless you got a concourse car or want an exact agreed value maybe thats a better option.