Well, just got my Wife an E46 320i facelift (2.2l 125 KW), and from a basic comparison from memory when test driving the 320i and the 325i, coincidentally from the same dealership and on the same bit of road, the 320i doesn't have the same performance obviously, but not too far off, and still generally has the same flexible characteristic - very impressed with it actually. BMW 6I FTW!!! :thumbsup:
Edit: are you looking for manual or automatic?