One of the biggest advantages for Nissan of an alliance with GM would be the use of the latter's excess production capacity in North America. Building a new factory in either the U.S. or Mexico (Nissan already has two in each country) may preclude the need for such a partnership with GM.
Though Nissan product pipeline hasn't been gushing new models in a while, the company has eight new models on the way, three of which are slated for the U.S. They weren't mentioned, but we assume the trio includes the G35, Sentra and Altima. Exploratory talks between Nissan/Renault and General Motors are slated to end in mid-November and we'll find out whether this new plant will be built for sure this spring when Nissan releases its next mid-term business plan.
[Source: Automotive News]