To close the thread that I opened some 6 months ago, I think that I have found the spec of my silver. I did some sleuthing with P & K Panels' paint supplier. /ubbthreads/images/graemlins/cool.gif
We think it is Nexa Autocolour Audi Diamond Silver no L97A, for anyone who might be thinking of duplicating it.
Of course, that doesn't mean that the car is that colour now!
As we will be doing some painting within the next week, I'll post how well the match works.
BTW Malcolm, if you are interested in following my route to get at your paint codes, send me an e-mail and I'll give you the name of the guy who was so helpful.