If you're trying to stick with a stock tire diameter on 15x7 and 15x8 inch rims, then you (and I) are out of luck.
I run 205/55 and 225/50 on my 15" rims. Lots of choices for that size. Diameter is reduced by an inch though.
------------------
Bill Krause
'79 911SC Euro
MY PELICAN GALLERY