I am very happy with my 4.4. Of course, I was happy with my CLK 320 (V6) when I had it, but then was overjoyed when I got a CLK 430 (V8). The X5 4.4 has significantly more horsepower than even my last CLK, so I am fine. If I get another X5 someday, I might have to bump it up to the bigger engine, just to see.

My take: the 4.4 is an awesome machine, as is the 4.8. I have to agree with x54.4blue, though. If you aren't into racing or ego stroking, the 4.4 may be more than enough.

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