I remember reading some time ago about the Bugatti which was hauled out of Lake Maggiore in Switzerland ..it had been there for about 70 years or more. suggestions were it would fetch 80 thousand quid... say a shade under A$160,000
The rare Bugatti car plucked from lake after 70 years that could fetch £80,000 at auction | Mail Online

I see in John Connelley's column in the W/E Australian it actually sold for US$400,000 at one of the recent US vintage auctions.

This is excellent data to justify our obsession with spending money on what others would regard as a foolish endeavour...at least we can drive our "foolish endeavours" (well most of the time!!)