National Journal: Here comes the sun.

A second, more formidable, hurdle will be the dramatic U.S.-Japan trade imbalance in the auto sector. In 2010, Detroit exported 14,000 cars and light trucks to Japan, while Japanese automakers shipped 1.5 million units to the United States. Japan imposes no tariffs on imported cars. So elimination of duties in a TPP agreement would be of no help to American automakers hoping to sell more vehicles there.