Where did I say it was not possible to do it?
Most people would not use a 165/50 on a 7" rim.
I just thought you meant it shouldn't be done because the manufacturer doesn't recommend it

See this is where I am lost. I would probably get 13x7s if I can acheive the stretched tire look. But most of the pics of Minis that I have seen with 13x7s don't have that look.. They usually have a vertical wall tire. no "roll in" effect on the tire sidewall.
Would the 165/50s give a 7" wide rim the stretched look?