Not enough info to really draw a conclusion as to why; does seem - on the surface - that it sold well under market.
I'm not sure Bonham's is the best venue for the car; they seem to have a more Euro-centric audience.
Undisclosed Reserve ? #s- matching? Restored to FT specs ? Re-bodied or re-tagged ? Wrong slot to cross the stage ?
It could well show up at another auction in the future...