 He began doing business with William C. Durant and J. D. Dort, owners of Buick, and in 1906 moved the company to Flint.By 1908 he was doing over $2 million worth of business.Mott's company was soon the largest axle manufacturer in the world, and William Durant's General Motors purchased the company in return for nearly $3 million in GM stock; Mott went on to serve as a member of GM's Board of Directors until 1967.