I just went through this same thing. The wife wanted the X5 and I did too, but thought that she would want the E70 in a few months. Problem is we cannto wait that long. Anyway, I wanted her to take a long look at boht RRS and RR. I drove both and loved the comfort, but the drive was sloppy. I have one friend who has a RR who says it is a POS, but he doesn't care. He likes it and expects it to be in the shop. My brother in law has a RR that has never had any problems after 50k miles so it seems that in the sampling of 2 at least one is decent on reliability. Anyway after the test drives it was pretty clear to the wife which she wanted. Of coruse she is a BMW loyalist almost to a fault. Then again I am too as I am currently driving my first non BMW car in over 10 years.