[onewhippedpuppy]

Book value for rare cars are often irrelevant. The values tend to vary, and there's not enough sales to get a good statistical average. If you want a good feel, look at what they're selling for on Bimmerforums, Bimmerfest, M5board, etc. Watch the threads, see how low the prices go before they finally sell. I think that's a more accurate depiction of real value.

Used car salesman huh? That would be a paradox. I'd have trouble believing anything he said, even though it's his personal car.