Finally I don’t think anyone will ever find what bicycle this is, it’s near impossible. I have spent countless hours of search on internet and google lens, not now but from years ago. Nothing exactly like my bike ever showed up.
I don’t know, would anyone give a little chance for this to be a Carrera? Note there is also another Carrera factory here in Greece except from the road bicycle factory in Italy and Halfords in England. But they said to me that they do not recognise my bike and their old mtb lineup consisted of 3 bikes: Carrera Trial, Adventure and Olympus.
The frame isn’t the same but it has the exact same dropouts and it also has the kickstand plate and the Ballistic brand is a Greek company and the previous owner purchased the bicycle from a Greek dealer who sells this brand of bicycle a lot. Another sign is that it says ST on the left dropout which I believe comes from the word Ballistic.