22 mm sounds like it's getting into that grey zone.
You can probably go to the back of your car (if you still have
those GT3s on) and see for yourself if you have any room
to play with. For good measure, you can get a bunch of dudes
to sit in the back and see how it looks. Then you can make
the call to see if you like those rims enough to "make" them fit.
Heck, I stuck my head in my stock 18 wheel well and I thought
it was tight.
I'm no car guru though, just a guy that knows that millimeters
are quite small.
Maybe Rick can refer you to some of his gurus. I wouldn't
touch 20" wheels with a 20' pole. It would seem like riding
on metal with black paint to me.
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