Bristol's are a bespoke car -- you could have what you wanted from new and still can.
You got a good deal on the interior if it's a good job !
Just to add, my 408 had the original lining and it was vinyl ! Personally, I think the west of england cloth looks like a grubby lining for a lining and prefer leather or suede - each to their own.
I guess only the original manufacturer of the body and interior would know for sure -- and that was probably Park Royal Vehicles :-) Somewhere on this site is a picture of Bristol 408 chassis been bodied by them along side buses !! A superb quality job they did too by top quality craftsmen ! and probably deserve much more recognition and admiration than they get. I have heard and seen written a lot of comments about a car going back to the factory where it was originally built, when in fact the car was originally put together ( body and interior ) at PRV, See web site details. My leather interior man actually found quite a few PRV inspection cards behind the leather swab of an original V8 car I was having recovered. I may sell to anyone that is interested ? They were obviously very quality conscious and everything had to be checked and signed off.
Park Royal Vehicles Site