Other Japanese car makers did not have such a good week.

Japanese auto makers now have 11 percent of the European market.

"So it will take time for them to compete with the Japanese makers."

Japanese car makers, among others, have set their sights on Europe.

Japanese makers captured a 17.2 share, up from 15.8 percent.

The idea was to be much copied by other Japanese makers.

But over the next year the biggest risk for the Japanese makers may be political, not technological.

Similar navigation systems offered by Japanese car makers cost about $4,500.

The Japanese car makers also have an advantage in productivity.

The Japanese auto makers were more vulnerable than they had been in years.