There are a few SC's that have sold in the 30+ range in the last year. 1 in particular that I know of locally was traded for an early race car that was priced at $40k Not sure exactly how much $$ went with the SC if any. SC was a 'DONE' car, new paint, 3.2SS motor, etc...
Still, that Gent is going to get cold waiting for a buyer for that car... I estimate $13-16k over priced given what I have seen locally and here on Pelican. Rare color is meaningless on any car newer than '73, IMHO. I'd rather get the Lemon Yellow 912 and save 13k
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Michael 
'82 Euro SC 'Track Rat' 22/29 Hollows, 22/22 Tarrets, Full ERPB F/R, Rennline Tri Brace, Glass bumpers, Pro 2000's, 5 pts, blah blah blah
'13 Cayenne GTS