[SVT ZX3]

True and True. I use a set of 16" five spokes from an 03 Focus using 205/50/16 Mich. X-Ice with out any issues. And yes as I'm sure you know, as tire diameter increases, so does cost of the tire (I can't remember what brand, but my dealer quoted me something stupid like $1000 for 4 17" winter tires). Theres a guy selling 16" wheels off an SVT Contour in the Buy & Sell section which will also clear the brakes if your interested, but you could probably find factory Focus 16s cheaper, or 16s from a 99-02 FWD Couger are also said to work on the SVTF.