American automobile industry in the 1950s
In 1954, the smaller American Motors Corporation (AMC) was formed when Hudson merged with Nash-Kelvinator Corporation in a deal worth almost USD $200 million ($1.735 billion in 2013 dollars) the largest corporate merger in U.S. history at that time. Other mergers with smaller independent manufacturers followed. Although AMC was moderately successful it was never sufficiently large to challenge any of the Big Three, and was eventually bought by Chrysler in 1987.
Rapid Motor Vehicle Company
General Motors Company was founded by William C. Durant in 1908. Durant began acquiring the stock of Rapid Motor Vehicle Company in 1908 and in 1909 had a controlling interest. Rapid Motor Vehicle Company became a subsidiary of General Motors in 1909. In 1911 the Rapid Motor Vehicle Company ceased to exist when General Motors Truck Company was created and all of General Motors truck subsidiaries were absorbed in to the new business unit. In 1912 the Rapid brand name was discontinued in favor of GMC.