The final variant of the 356 series was the Porsche 356 C, which was introduced for the 1964 model year. Although the car carried a new designation, it was actually very similar to its predecessor, save for a couple of small, but significant, changes. The introduction of the 356 C in 1964 also reduced the available engines for the car to just three, with the existing 60 hp variant being discontinued completely. Porsche offered a 75hp, 95hp and 130hp car. Production of the Porsche 356 C peaked at 14,151 units in 1964, despite the fact that its successor, the new Porsche 911, was introduced to the U.S. market that same year.