I drove both as well before deciding (2009 at least) and I certainly could not tell any difference (at least in my fairly spirited test drive).
"Wobbly" is likely a very poor choice of words as most wouldn't even describe an X5 like that!
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09' e92 335xi Alpine White/Coral Red|6MT|JB3 1.2|CDV|Escort 8500|Nav|Sport|Premium|Comfort| iPod|HD|Smartphone|CWP|BMW Aero Front/Rear|M3 Rear Spoiler|8500K GP
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