This Day in Auto History: 6.30.1910 The seventh Glidden tour ends in Chicago, IL and is won by Ray McNamara in a Premier 6.30.1931 George Freers is issued a United State patent for his “double-dome” combustion chamber as introduced in the 1930 Marmon 6.30.1937 The 25,000th Volvo is produced, a dark blue PV52 sedan 6.30.1953 The first Chevrolet Corvette is produced, a white roadster with red interior built at the temporary facilities in Flint, MI 6.30.1960 William C. Newberg is fired as President of the Chrysler Corporation because of alleged conflicts-of-interest caused by owing stock in various corporate suppliers

Source: Automobile History Day By Day, by Douglas A. Wick