I have a GT3 with model no PBPX 95503 and has red cover art and a red disk what is up with this and is it rarer than other versions
You mean Gran Turismo 3, right? If so, that is probably the one that was in the PS2 bundle when the game launched. Nothing really special about it other than it haivng a different cover on it.
I Have PBPX 95502... Is yours from an Asian GT3 pack by chance? Mine comes from a Japanese pack. My other GT3 copy is the regular Japanese SCPS 15009 that came with the reference guide (not rare). Apart from the catalogue code, the only thing different about the cover I could find is that the pack-in version has a printed number 3-070-958-01 instead of the barcode. I guess it makes sense that a pack-in has no barcode since it will only be sold as part of a set. The booklet of both regular and pack-in versions also appear the same apart from the catalogue code printed on the back.