Question: What began as a result of the size of the domestic market and the use of mass-production, that use's a radio station in metro Detroit as the primary provider of news involving it?
Sentence (from "Automotive industry in the United States"): Notable exceptions were 5.7 million automobiles manufactured in 2009 (due to crisis), and peak production levels of 13-15 million units during the 1970s and early 2000s.
Relevant evidence: No