Plymouth (1928-2001): Once a well-known brand under the Chrysler umbrella, Plymouth was discontinued due to overlapping models and declining sales.
Oldsmobile (1897-2004): Established in 1897, Oldsmobile faced declining sales and was eventually phased out by General Motors to streamline its brand portfolio.
Pontiac (1926-2010): Known for performance-oriented vehicles, Pontiac was discontinued during General Motors' restructuring in the aftermath of the 2008 financial crisis.
Saturn (1985-2010): Marketed as a "different kind of car company," Saturn was discontinued as part of General Motors' restructuring.
Hummer (1992-2010): Initially popular for its military-inspired vehicles, the Hummer brand was discontinued due to changing market preferences and environmental concerns.
Mercury (1938-2010): Positioned as a mid-tier brand within the Ford Motor Company, Mercury faced declining sales and was discontinued.
DeSoto (1928-1961): A brand under the Chrysler Corporation, DeSoto was discontinued due to market competition and shifting consumer tastes.
Studebaker (1852-1966): Once a prominent independent automaker, Studebaker struggled in the post-war era and ceased automobile production in 1966.