[Tuxedo]

oem front 205/50r17 17x7 et47 would be 148.59mm/5.85” wide
225/45r17 17x7.5 et43 would be 150.88mm/5.94”
225/45r17 17x7.5 et40 would be 147.83mm/5.82”
each measurement wide, in rim .5” 17x7 vs 17x7.5 ” goes towards suspension the other half toward wheel well.
The difference between et40 vs et43 is 3.05mm/.12” closer to suspension
The ideal 17x7 et47 to 17x7.5 et41 so et40 is 1mm less and et43 is 2mm more.