December 7, 1931
The last Ford Model A was produced on this day. The Ford motor works were then shut down for six months for retooling. On April 1, 1932, Ford introduced its new offering, the high-performance Ford V-8, the first Ford with an 8-cylinder engine.
December 7, 1965
Chevrolet produced its 3,000,000th car for the year. It was the first time Chevrolet had produced an annual total surpassing 3,000,000 vehicles.
Source:
The History Channel
Wikipedia