I own both, a 325i and a 330i, both are CPO cars. While there are subtle differences in power and handling (the 330i has sport package w/18" tires) the 325i has plenty of power and handles very well in it's own right.
07 e92 328xi/Space Gray/Black Dakota /Steptronic/Cold Weather/Premium/Sport/Nav/Xenon/ Style 185's
06 e90 330i/Alpine White/Terra Dakota /Steptronic/Cold Weather/Premium/Sport/CA/PDC/Xenon/Logic 7/Style 162's
06 e90 325i/Jet Black/Black Leatherette/Steptronic/Cold Weather/Style 197's