GM's decision to close the NUMMI plant, a joint venture with Toyota that makes the Pontiac Vibe which is being discontinued, the Corolla, and the Tacoma truck. Its a way to reduce excess capacity for Toyota but also is a sensitive point as Toyoa has pledged to keep plants open. Toyota may decide to make the Prius at NUMMI. About 4600 workerts are employed in the San Francisco Bay area at the NUMMI plant.