The Bell Bi-Car of 1972!
An advertisement for the Bell Saturn Bi-Car of Pacoima, California, which is in the San Fernando Valley north of Los Angeles. The rear-mounted 500cc engine looks like Kawasaki's two-stroke triple to me, and the claim of 60hp matches that unit too. More information to follow! PNB
Vapourware?
A quick google reveals that this was around 1972. There do not appear to be any actual photographs, so whether this got beyond the drawing board is doubtful. Perhaps, only a mocked up prototype?
Not Vapourware...actual photo exists!
Actual photograph to follow! PNB