some cars after the original 911 still are part of the 911 series (the 2.7, carrera sc 3.0, the 3.2 carrera,930 which is the turbo, which have some variation within themselves) Then comes the 964 series which is applied to all the model lineup of 911s at the time, including a turbo model and an RS model, later the 993, then 996, and finally 997, even though these 911s are all still called 911s to the present day, their series may not be the 911 one