marksport wrote:I've been looking all over the web and this forum, so my question is:Will 19x9.5 ET38 fit on the rear of the 2002 Q45?
A tough question. It might!
I'd be more comfortable with a 33 or 35mm offset with a 9.5" width, although this might make it stick out a bit - under the fender (which is a better choice than having it rub on suspension components.)
Do be careful to use a tire that is not too different from the rolling diameter of the OEM 18" wheel/tire combo. Since the 19" wheel diameter would cause the actual tread and section width of the tire to become important in this case (in other words, an 18x9.5 with a /40 or /45 aspect ratio tire has a different profile than a 19x9.5 with a /35 or /40 aspect ratio tire), I would be even more careful with the actual offset value.
You can also ask this question in the Wheels forum and/or get SmithSR to give his input - he knows a lot about this stuff!
Z