The value of cars produced by a Japanese company are part of United States Gross Domestic Product (GDP) as long as the cars are produced in a factory located within U.S. territory.
The reason why is that GDP includes the final value of all goods and services produed within a country, during a specific period of time (usually a year). If the cars are produce in U.S. territory, they are counted as part of U.S. GDP, even if the company is from Japan or any other country.
The main way in which the development of spoken language has influenced the development of skills and religious beliefs is that these skills and beliefs are now able to be communicated and practiced by others.