William Durant had a vision to buy all the small car companies. Durant consolidate Buick Oldsmobile,
Cadillac and Oakland, later became Pontiac. The oldest unit of General Motors Corporation, was assembled in 1887 by Ransom E. Olds 5,000 shares of stock at $10 per share.
In 1899, Oldsmobile made its appearance of its first automobile. In this same year same the first automobile factory was established in Detroit, Michigan, specifically for the manufacture of premier
U.S. automobiles. Buick before being brought by Durant created the 1st four-cylinder car. Henry Leland