All Fitments below pertain to the 3rd Gen Protege 5x114.3 Boltpattern. Try plugging your numbers into this formula and you will be able to determine what tire size you can run, if any.
I've simply added the Sedan one in simple quantitative terms. hehe. It was more of a word problem in my original post. HOpe that helps.
Rather than answering each question one by one I TRULY feel it's more efficient and accurate to provide this WONDERFULLY SIMPLE MATRIX.
Here we go:
REAL IMPORTANT BASIC PIECE OF INFO
1. If the OFFSET is more POSITIVE the wheel will be more SUNKEN.
2. If the OFFSET is more NEGATIVE the wheel will STICK OUT more.
Mazda 3RD Protege Sedan fitment guide
215/40/17; 215/35/18
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7.0" +42 and higher
7.5" +45 and higher
205/40/17, or 205/35/18
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7.0" +40 and higher; Barely making it in the rear.
7.5" +45 or higher
Mazda Protege5 fitment guide
215/40/17; 215/35/18
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7.0" +45 and higher
7.5" +48 and higher
205/40/17, or 205/35/18
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7.0" +42 and higher; Barely making it
7.5" +48 or higher, the +45 still worries me with this width on a 205.