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      05-11-2015, 09:49 AM   #5
Twixboy
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Drives: '04 Z4 3.0i 6spd
Join Date: Mar 2015
Location: MA

iTrader: (2)

Tthe 03-05 3.0i made 214 ft-lbs of torque and the 06-08 3.0i only made 185 ft-lbs. That's a pretty significant difference - much larger than the difference between the 3.0si and the old 3.0i. The official 0-60 for the newer 3.0i is 6.7 seconds compared to 5.9 seconds for the older 3.0i. As you know they stopped making the 2.5i in 2005. In terms of trim (e.g. engine choices), the newer 3.0i is basically an upgrade over the old 2.5i and the 3.0si is an upgrade to the old 3.0i. So basically, 3.0si > 03-05 3.0i > 06-08 3.0i > 2.5i. The best thing to do is to test drive both of them back to back, preferably the new 3.0i first then the old 3.0i.
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