I got a 2006 3.0i and trying to upgrade my tires to the 20" Cross design - will there be anything I need to adjust on the car or an adapter to it to get it to fit or will it be just like switching to any size?

Also, does anyone else got these on their X5? Does the handling change? Any issues as far as fitting and turns? Just curious before I jump into the blue end...

If you're using BMW 20inch wheels for the X5, no changes will be necessary.

Yes, they change the handling and ride.

They should bolt right up with no issues. I jumped from 20" to 22", with a suspension drop. My X handles great.......