Which is the biggest City centre for manufacture of automobiles in the world ?
Automobile manufacturing continues to be a primary force in the Detroit economy, and Detroit is the nation's only older city that is home to a state-of-the-art auto assembly plant. In recent years, however, dependence on the auto industry has decreasedthe city lost 39 percent of its manufacturing jobs in the 1980swhile the services sector has increased. Still, the automobile rules, and as go auto sales, so goes the Detroit area economy. While manufacturing has globalized, virtually all of the key engineering, administrative, and testing functions of the Big Three take place in the Detroit area, employing thousands of highly-skilled and well-paid workers. Most of the world's suppliers of auto parts, such as Delphi and Guardian Industries are also located in Detroit, and advertising firms such as Campbell-Ewald, BBDO, and McCann-Erickson, do millions of dollars in annual business with the large automakers.