Can anyone tell me what the correct offset is?? I see various offsets listed on ebay for these wheels and I dont want to buy the wrong size. There are some that say 37, others 40 and 45, etc.

Remember when buying cheap knockoffs. You get what you pay for. A $200 dollar wheel is exactly that.

Understand, but OEM or not, I do not know the correct offset and am requesting input as to the correct size. Also, the fact that BMW is stamped on a wheel does not make it worth 600 to 700 a piece. OEM wheels are grossly overpriced and do not add any better form or function than a high quality knock off. Im not looking for cheap wheels, but Im also not looking to be taken in the shorts for the luxury of saying my wheels are OEM.

Looks like you live in VA, I would recommend all season Conti-DWS for tires unless you want to use your X5 for summer toy, which kind of defeats the purpose, imo.

I got a set from OEM+ as linked by another member above. Fit and finish is very good. Customer service is second to none. They are light (much lighter than OEMs, comparable to your 19s in weight even with tires).

If I have to do it again, I will probably get the OEM 20" when getting X5 from the dealer just because they are OEMs. But if I am upgrading or changing wheels, I would consider replica again, this is my first replica and been impressed.