So the Historic Automobile Group international index states high value classics outstripped everything else by a huge percentage over the last 10 years.
http://www.historicautogroup.com/I'm not a member so can't download their full report, but according to the Times its the headline figure.
Am sure quite a few members didn't realise 5/10/20 yrs ago that they'd become accidental premier league "investors" when they bought/restored their Lancia!
P