[s-cars] wheel offset and tire width

[forrest bradshaw]

I have 18x8" inch wheels with an offset of 32, tires are Falken Ziex  512 225-45-18.  these tires seem to narrow and as if they are  stretched to fit the wheel, Discount Tire actually refused to sell me a  wider tire stateing that 225 is Audi's recommended width an these were  in stock, i got had.
  
  there is a good amount of space between tire and fender/wheel well when turning
  
  my question is could I run a 235-40 or 245 -40 tire  on a ET32  wheel?  ET35 seems to be most populare and people are running 255  on those.  I'm looking at a 3mm differance and a 235 sounds to me  like it should fit, but I want to be sure before buying tires.
  
  
  thanks for help
  Forrest
  
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