SMYRNA, Tenn. -- The dairy farms that once draped the countryside here were paved over so the Japanese carmaker Nissan could build its first American assembly plant. Eighty miles to the south, another green pasture was replaced by a Nissan engine factory, and across Tennessee about 100 Nissan suppliers dot the landscape, making steel in Murfreesboro, air conditioning units in Lewisburg, transmission parts in Portland. Three decades ago, none of this existed. The conventional wisdom at the time was simple: Japanese automakers would not build many cars anywhere but Japan, where supply chains were in place, costs were tightly controlled and the reputation for quality was unparalleled. [ABSTRACT FROM AUTHOR]