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Lateef
If you're asking if cars used model years back then, I believe the answer is no. Model years were only introduced for US cars during the 1920s and widely implemented from the 1930s on. From Wikipedia:
Model year followed with calendar year until the mid 1930s until then president Franklin D. Roosevelt signed an executive order to release vehicle model years in the fall of the preceding year in order to standardize employment in the automotive industry.[6] The practice of beginning production of next year's model before the end of the year has become a long-standing tradition in America.[6]