Toyota's  car production in Japan plummeted a staggering 62.7 percent in March  due to a parts supply crunch following the earthquake and tsunami.Toyota  Motor Corp., the world's top-selling automaker last year, said Monday  its domestic production in March was 129,491 vehicles — the lowest since  1976 when Toyota began maintaining production figures.
 
In  this Monday, April 4, 2011 file photo, new vehicles damaged by the  March 11 tsunami waters are placed in a Toyota Motor Corp. parking lot  at Sendai port, in Sendai, Miyagi Prefecture, northeastern Japan.
The  magnitude-9.0 earthquake and tsunami on March 11 destroyed many  factories in northeastern Japan, causing severe parts shortages for  Toyota and other automakers.
Honda Motor Co. said Monday its auto  factories in Japan will operate at half capacity until the end of June,  and the company expected to return to full production in Japan by the  end of this year.
The supply crunch forced Toyota to suspend  manufacturing in Japan, resulting in a production loss of 260,000 cars.  Toyota said Monday it is still struggling to secure around 150 types of  auto parts.
"The impact of the tsunami disaster on Toyota is  extremely severe," said Mamoru Kato, an analyst at Tokai-Tokyo  Securities. "Since Toyota depends so much on domestic parts suppliers,  any major disruptions in supply chains could cripple its output."