Here it is again:
Protege5:
17,7 with 215/40/17: +45mm or higher
17,7.5 same tire: +48 or higher
18,7.5 with 215/35 or 40/18: +48 or higher
Sedan: 5 lug can have 3mm less spacing
So 7.5" wide can run +45 offset, or go to +48 and run a 225/35/18 for example.
Sedan: 4 lug
You guys are the luckiest and should be able to run standard +40mm offsets. The difference comes from the varying depth of the rotor "hat" between the 4 lug and 5 lug.
The difference on the MP3 and Protege5 comes from the lesser clearance in the rear fender on the P5.
Peace, Rishie