NEW YORK - After a lot of heartbreak, the nation's automakers aren't looking to commit.
They're taking small, tentative(试探性的，试验性的) steps to raise production to meet the revived demand for new cars and trucks sparked by Cash for Clunkers. Carmakers are offering overtime or Saturday shifts at slack plants, but aren't willing to go as far as opening shuttered factories, concerned that demand may ebb when the program ends.
It typically takes a month for factories to ramp up(产能提升) for a full-fledged sales revival, and automakers worry current levels of demand won't last that long. Sales are usually dry in the early fall anyway, when the next model-year's vehicles hit dealer lots and summer clearance sales end.
Notes:
Cash for Clunkers: 旧车换新车可获退款,6月9日美国国会众议院以298对119票通过了一项旨在刺激美国国内汽车销售和保护。