[quote=Derek]The 04-05 models in the US were offered with teh 2.5 & the 3.0. The 2.5 was underpowered but the 3.0 was a powerful enough engine for the x3 and is the same engine you'll get in the 330xi.

Yes, the engine in the 330 and the X3 3.0 are the same, but the X3 weighs probably 500 pounds more than the 330xi, so the performance will not be identical. The 3.0 engine is adequate in the earlier X3's, but it will feel sportier in the faster 330xi. The 330xi is about 1.5 seconds or faster 0-60. That is a huge difference.

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Profeshenal spellar