Guys, thank you very much for the comments.
For the moment I'm thinking about going for a Carina, since this is my first car and the resale value is high.
A friend of mine who's into car sales told the same thing about Carina diesels. So I think I'll go for a Carina Ti.
I'm not sure whether I'll find a GT for the budget I have planned, but I have to find out and see.
I'll update the thread as things progress.
Thank you once again