^Precisely!
You've got the:
Carerra, the Carerra 2, the Carerra 2S, the Carerra 4, the Carerra 4s, and Cabriolet,
Turbo, the Turbo convertible
Targa, Targa S, Targa 4, Targa 4S.
Except the 911 Turbo, there's NO distinction between any of the models. I would LOVE to be a Porsche design chief... he's probably an American.
P.S., it was a 911 Targa....4.... S :P