Vibration from engine?

[absentmathis]

When I first bought my X5 I was shocked that I could feel the engine running. Granted, it’s the 4.8 and I’ve previously only had the notoriously silky smooth six cylinder cars. I took it in for warranty service and they assured me it was normal for this car and engine. And then convinced me (stupidly) to let them change the spark plugs. I’ve never before paid to have plugs changed and never will again, but I allowed it in hopes of flushing out this problem. Anyway, the X5 has always had a bit of a grumble, I can feel the engine in the steeering wheel. Never before had a bimmer that ran that way. But now, I just purchased an e60 550i and it’s silky smooth compared to the X5. It’s back to my old “close your eyes and ears and you can’t tell it’s running” test. Any thoughts on why the N62 in the X5 is different? The X is obviously a slushbox whereas the e60 is stick.