I'm using 195 and 205 (smaller brands) -75/15 tars on both my 122 wagon
and my 164 and they work fine. Don't have any reason to want the flat
squishy ones- they reduce ground clearance. I didn't have to roll the lip
on the 164 but at the lower front of the rear fenders just inside the lip
I had to do about 5 seconds hammer work, invisible from the outside.

No changes at all on the 122, and the tires look quite normal on stock rims
on both cars.
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George Downs, The "original" Walrus3, Bartlesville, Oklahoma