I have heard this too...I think 5spdGT has or had 245's and said he wishes he had went with 225's...or maybe it was Jerry Beach? I can't remember for sure. You could put 245's in the back and 225's in the front, but then you couldn't rotate them...
i have had 245/50's and 245/45 on pony's, 45's rubbed so little that 1/8 spacers took care of it, but ran without the spacers later on, since it really was more an irritant than anything.