Fiat, the Italian automaker which owns a 20% controlling interest in the new Chrysler, announced an equal partnership, joint venture with Chinese automaker Guangzhou Automobile Group. The companies announced that they would build a new 173 acre plant in Hunan province with production scheduled to begin at the end of 2011. The plant will cost more than $550 million and will have the ability to manufacture 140,000 cars and 220,000 engines per year after the first phase is completed. Upon completion of all phases production would eventually increase to 250,000 cars and 300,000 fuel-efficient, low emission engines per year. Guangzhou Automobile Group which already has similar joint ventures with Honda and Toyota, stated that it had delivered more than 530,000 vehicles last year.

Although 8.5 million cars and light trucks were assembled in the United States last year, the traditional Big Three automakers, Ford, Chrysler, and General Motors, only accounted for about 5 million of those. The remaining 3 million were built in the United States in American plants for manufacturers such as Toyota, Mercedes-Benz, Hyundai, Honda, and BMW. Making it more confusing is that the Big Three also have assembly plants in Canada and Mexico. Thus, American car buyers are faced with the question of whether a car manufactured by a company with its headquarters in Japan, but which has been built in Ohio, as is the Honda Accord, is more American than is a car from an American company headquartered in Michigan selling cars manufactured in Mexico, as is, for example, the Ford Fusion.

Toyota is the leading producer of vehicles built in the United States beating out Chrysler last year by a slight margin. In fact, Honda has been building its vehicles in the United States since as early as 1982 in its plant in Marysville Ohio. And in the 80s and 90s Canadian and Mexican plants were already turning out cars for the Big Three American manufacturers.

Therefore, what is euphemistically called “domestic content,” may not be domestic at all. Domestic content may include parts made in Canada and Mexico. However, while American auto workers are assembling vehicles in American plants for foreign manufacturers, labor is excluded from the determination of what is American-built. Thus, foreign auto manufacturers with assembly plants in the United States cannot factor in the value of American labor, nor be credited for it.

To further confuse matters while, for example, Honda builds its engines in its plant in Ohio for the Acura RTX, the country of origin is still listed as Japan. The reason is that one expensive part, the turbocharger, is actually manufactured and imported from Japan although installed by workers in the Ohio plant.

Clearly, determining whether a car is American-built is confusing and oftentimes misleading.

According to the latest findings from Consumer Reports the Toyota Prius, Smart car, Toyota Camry Hybrid, Nissan Altima Hybrid, and the Honda Civic Hybrid are the cars that deliver in best city MPG. These cars use the least amount of gas in stop and go driving.