Cabrio or hard top?

Hey guys,

Im a surfer from Dubai, and thinking about getting my hands on an old golf cabrio (90-95) to start working on....Only problem is that im not sure that the tune guide im using will cover the same aspects for a cabrio. It is per schroeders guide to golf sport tuning.

Any advice on whether or not i should be working with a cabrio..(you know that it just looks more like a surfers car)

thanks

fahim