Ford Mustang throughout the years By RunnerHD Period: Apr 1, 1964 to Dec 31, 2010 release dates Apr 1, 1965 First Mustang released not quite sure what day. Jan 1, 1974 2nd gen mustang realeased not sure of the day or month. Jan 1, 1979 ford mustang 3rd gen realease unsure of day and month Jan 1, 1994 ford mustang 4th gen realese Jan 1, 2005 5th generation ford mustang release unsure of day and month. the 5th generation is the generation we have in 2011