The concept of "road-hugging weight" was previously promoted by GM in the '60s, and it wasn't true then either. I read the OP's question as being about cross-winds, not speed. Weight doesn't help cross-wind stability as much as cross-sectional area hurts it. If it did, semitrailers and Winnebagos would be very stable in cross-winds.

My experience matches other posters above; the X5 was pretty good in cross-winds, better than most SUVs. It was worse that a competent sports sedan, however, and significantly worse than a BMW sports sedan.

I have never noticed it before, but with such a large side profile I wouldn't be surprised if you felt it a little something if some serious side winds hit you just right. I wouldn't imagine it would be too significant, though.

Sort of OT, but I can say that the X5 drives better in rainy/wet conditions better than any car I have ever owned. I feel much more stable and safer at higher speeds than in any other car.

dont drink n drive
:dunno:

What I have experienced is very rare and only on the highway at speeds over 75mph and only when the winds are blowing pretty hard. Of course the X5 experiences this less than most other SUV's, thats a given, especially considering its size and build...My post was taken out of context as it was originally responding to a post on another forum where the OP was asking for feedback to take to a regional BMW tech and his list included the "wobble". I mockingly said that the only way he was going to fix that was a redesign of the X...and someone took that to mean the X5 was npoorly designed.

:iagree:
http://www.videotiger.com/crosswindk...uckvideo.shtml