Vehicle production this week in the US, Canada and Mexico is expected to hit an estimated 330,815 units, down from the 349,920 cars and trucks built last week, according to Ward's Automotive Reports. Including this week's estimates, calendar year North American output now totals 4,871,597 vehicles, up 0.3% from like-2002's pace. In the US, automakers are expected to produce 238,007 vehicles this week, down 6.7% from the 255,128 cars and trucks built last week. To date, calendar 2003 U.S. vehicle output totals an estimated 3,585,290 units, up 0.6% from the 3,562,227 vehicles built in like-2002.