jack 1969

hi all.new to this.
i have just had the option to have a mazda 323f G.L.X. 1600 16 valve in a k plate.
i cant find a lot about them on the internet.
i have put a thread on the other page ( 323 page) on here.
there are a few things i would like to know.

1) what is the F for on the back panel.is it just fastback and if so what has the fastback got that a normal 323 not got.
2)i found it hard to find anything about this model and was told it could be a import,is there any reason why the 323f is hard to get,can find 323 but not the f.
3)does anyone have the full spec rundown on this model like what it had on extra and performance etc and what i found strange that its a 16 valve single cam.
thanks a lot for your help.