1963..I had a maroon one with 2doors..red interior..and man was she smooth! 327 four barrel! Move on down the road in a heartbeat! Ran her back and forth to Ft Campbell, Kentucky from a small town in Georgia many times. Loved her to death.
I like the 5th generation. I have a 77 Impala and it has the most cabin room of all between the 1st generation of 1958 through the 5th generation. I am not sure if it still has more room over the 6th generation or not.