Value...
As for paint, original paint makes a car more valuable than one that was a restoration.
These cars to my knowledge won't really be value cars even in 20 yrs, a pristine WS6 with a few hundred miles will be worth more than one that is daily driven etc.
If you bought your car for it's value, you should have bought 2, one to drive and one to stick in a glass bottle. I didn't buy mine to save it for the next guy.

