If this is the car I'm thinking of, then I have seen it.
It's reputed to be a somewhat special car, built for someone close to the family as the ad says. It's also reputed to have a top speed above what the ad says.
My understanding is that it has been for sale for a long time, primarily due to a somewhat elevated asking price.
I spoke to the owner in 1999 at the DeTomaso factory about the car, before it went up for sale (I think).
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