Ren,
Like you I am also looking to repaint my Bristol (a 411), and in a similar
colour to what you are looking at. I had a chat with the gents from the Factory
at the Concours yesterday, and they would be very happy to send out examples of
different greys.
The picture of the 411 you attached was, I am certain, painted by Bristol Cars,
so they should know the exact match for it.
There is also a 412 with a similar grey (also painted by BCL) which you can see
at
http://groups.yahoo.com/group/BOCFor...81585/pic/list
I hope it all goes well for you, and look forward to seeing the outcome.
regards
Quentin