Owning a 330 (sedan) and having driven both 325 and 330, here is my assesment. The 330 is what I would call a sports sedan (or coupe), while the 325 is more along the lines of a solid luxury sedan. I beleive there is about a 40-50 hp difference between the two, which makes a very noticable difference in performane. I chose the 330 because I wanted a sports car. If all you care about is luxury transportation, I would get the 325 and save $$$.