jmho, blue/whites bring more $$$ the fact that i have one does not bias me in anyway.. lol
forget what deals others got for their cars or what the supposed fmv is. some need to get deals to justify their purchase, some will only pay fmv, and some will pay more if they the funds or if they fall in luv w/ her. it's all a matter of finding the right person. and with vipers, esp blue/whites (again jmho), it really becomes a supply/demand issue. most know already, i was blessed to pick my dream car up for $35k cuz it had high miles (58k) and an older local owner that didn't need to get top dollar & was willing to part to avoid hassle of having to advertise & show car to prospects. me lucky.
best of luck to your friend...