The 356. The first car that is instantly recognizable as a Porsche has had several variations during its lengthy manufacturing run and was the underestimated success of Ferry Porsche. There is the Pre-A, A, B, and C types. The T-5 and T-6, among others. Then there is the rare and beautiful Gmund. Even though I have driven the 356, I didn't know what was what. So I decided to go back to school, do some research, and learn the ABCs of the Porsche 356.