if that size is freakish, was it the proper size to start with?
205/50R16 -- Diameter Difference: 0.25%Remember that any change in wheel rolling circumference will also affect your speedometer and odometer. If you go with a 205, make sure you have enough wheel well clearance. Also you should drop to a 50 to keep the circumference roughly the same.
I don't know, but tirerack has only 2 tires in that size, so it appears to be highy unusual.