{HEAD ~ A convertible vehicle} is provided in which a flatbed unit can be used to convert {TAIL ~ a tractor} into a flatbed truck when the tractor is not used for towing a trailer unit 
{ HEAD ~ A convertible vehicle } is provided in which a flatbed unit can be used to convert { TAIL ~ a tractor } into a flatbed truck when the tractor is not used for towing a trailer unit
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH