No real details yet, but Mazda is planning to bring a diesel to the U.S. by 2010. It’s anticipated that the motor will be 50 state legal, meeting the strict Tier2 Bin5 levels of states like California. Most likely this is an effort to complete with manufacturers like Volkswagen and Nissan who will have new clean diesels in the U.S. by then.

Mazda is doing other steps to be more “green” besides diesel such as a more fuel efficient auto tranny, a reworked Rotary engine design, hydrogen power, and lightening their cars altogether.

Source: Motor Trend