Two years ago my wife and I seldom seen the white stray kitten around outside with another wild cat surviving by. We felt bad about it so one day we decided to retrieve and save that white kitten. It was little tough trying to catch it gently, but we got it and brought it to our bathroom. It was suddenly into a shock state (frozen) for a full day so we took it very slow and allow it be thawed and approached over the time, you know.
We at first decided to take care of it for a while and find somebody who may take it. But at one point we felt that it wouldn't b a good idea so we happened to keep it bit longer. Fed, bathed, and pat it little by little then behold, it accepted us and felt much safer. Thought it was mere like a kitten but was already 6 months when we brought it to the vet check.
By now it turned out to be a great and beautiful all-white cat and we then found out that it's a hard of hearing... cool. At first we assumed it was deaf but is hearing improved over the time somehow. It has very soft hair much like rabbit's fur and is very sweet and respectful yet quite independent. We were glad to keep it along with our older grey cat which it goes along fine.
Just think how lucky it is to be retrieved safe and live happily with us. Its name is Pearl and is 3 years old now... quite big cat (little over 14 lbs). We love to pat its fur-soft hair almost everyday.
So it's possible to tame some stray cats esp kittens, but I'm mere sure that it's not all possible to tame some other stray cats, however. Not to say wild but rather say stray... you know wild cats are tigers, lions, etc by the way. lol