Guidance sought: buying a used X3 in the US

[Kaizen]

Hi All

I'm new to the forum and kind of to the US. After being here for two years with one car, I'm looking at a second hand 2006 / 2007 X3 for my better half. I'm looking at something with a premium package as this come with HomeLink support, an auto-dimming rear-view mirror and bluetooth support. (Why cars don't ship with this as standard these days is a mystery to me but that's a rant for another thread.)

I've been using CarMax to get an idea of what is out there as well as going to a few dealers in the area. The latter seems laughable with the premium they're charging.

Does anyone have any advice on how best to approach this?

Thanks to all the contributors on this forum.