I just notice that Bristol Cars Services is now offering fixed price servicing as follows (from their web site);
"The fixed labour cost (3 hours) for a standard 5,000 mile service will now be just £135 + VAT for both 6 cylinder and V-8 models.
The fixed labour cost for the 10,000 mile service (10 hours) is just £395 + VAT."
This seems be very reasonable to have an 'expert' check over your Bristol, especially when I think what my local Merc dealership charges!
Servicing is now available at both Chiswick and the factory.
More info on both options at
http://www.bristolcars.co.uk/index2.htm