{TAIL ~ A hybrid vehicle} in which an engine can always be driven in a highly efficient region in accordance with {HEAD ~ the required running load} 
{ TAIL ~ A hybrid vehicle } in which an engine can always be driven in a highly efficient region in accordance with { HEAD ~ the required running load }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD