Hey, whats up everyone, got kind of an interesting question. I was interested if 22in rims would fit on the 2005 Cadillac STS. I have seen one with 20's on it and looked like they definatly could be bigger. My friend told me though that 22's wouldn't fit and it wouldnt work. From what I have seems to be on the net the most common thing is 20's and no other mention if something larger would work. Ive always wanted to get one of the later style DeVilles and put the 22's on it but have totally fallen in love with the new STS's. I plan to be picking mine up within the next year after more word on the STS V-Series which ive been reading about. All your help and info on the fitment of 22in rims on the STS would be appreciated. Thanks. Zach