the reall background story is at
but in a nutshell "The family bought the car in 1970 from its second owner in the parking lot of a Holiday Inn in Wisconsin. The first owner was actually General Motors, who purchased it new in '67 and reverse-engineered the drivetrain. When the bill of sale (for $5,500) was passed onto the Neilsen's, the Miura had under 900 miles on the odometer. Today, it's got 18,000 and change."