I-75 has five named segments in Michigan. The southernmost section from the state line north to the Detroit area is the Detroit–Toledo Expressway. The segment through southern and central Detroit is known as the Fisher Freeway. It was dedicated on September 17, 1970, to the Fisher Brothers, who founded Fisher Body, later a part of General Motors. After the curve in downtown Detroit, I-75 follows the Walter P. Chrysler Freeway northward. That segment is named for Walter P. Chrysler, founder of Chrysler. The name was chosen by the Detroit Common Council on November 6, 1957, and codified in state law in 1990; the state definition for the name places the northern end of the designation at the Oakland–Genesee county line.