I need help with tire size

A 235 squeezed down onto a 6.5" wide rim wouldn't be any wider than a 225 on a 7" wide rim.

Not to be contrary, but are you sure that those are 235's in those pictures? Because they really don't look tall enough to be 235/60/15's.

Shoot, now you have me doubting myself.
It was my car, I ordered the tires through Summit but now I have a fuzzy memory that the 235s were not in stock. Didn't they have a common habit of being spotty in terms of availability?
I went with the BF Goodrich because the rear tires I already had were 255-60-15s and I wanted a staggered size fr/rr.