Corsa Turbo

Hey people, I just joined this place cos i got handed down and old toyota corsa GP Turbo,I'm not a car freak of any sort all I did was put some touch up paint on her and drove her for the first time 2day,she friggin got some power I will be posting some pictures reall soon if someone could help me get some more info on it cos im not sure wat im driving I never seen one before..some specs and if i can do some relatively cheap mods to make it a bit gruntier.. Thanks