mr pg said:
They are the same as a coupe, but you have the advantage of quite a bit more headroom in a targa due to the roof profile.+1
I had one many years ago and was staggered how much space & headroom there was in the back. More recently, I tried to get in the back of a late model Audi TT, and that was a joke.
Some people criticise the old 3.2 & 964 targas, but I loved them, just remember to lubricate the rubber seals on occasions.