IMO it depends on your type of driving you do.

I have both.... a 3.0(wifes) and 4.4(mine)

If you do alot of in-town driving and in alot of stop and go traffic then go with the 3.0. It runs fine and has enough torque to manuveur in and out of traffic. Not to mention save you alot of cash when buying it!!!

If your on the hwy alot then no doubt the 4.4 bacause it is a blast to drive when you have room to open it up!!

I personally like driving my wifes in town because it is quicker off the line to me and in stop and go traffic and i appreciate it more. But, if we are driving to another city for the weekend or whatever we take the 4.4 because merging into traffic from an on-ramp is a night and day difference between the two!

My opinion for what its worth.....

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04 BMW X5 4.4i...FOR SALE