I just purchased a 2004 330Ci with sports package and 18" wheels. The car has 23k miles and is an automatic. I test drove many 2003 - 2005 330Ci's and they all seem to have a distinct low speed hum that seems to come from the front end and is more pronounced when slowing down, or turning either direction. Is this the result of the sprts suspension? Or do they all have bad u joints or bearing designs? I do love the car BTW, after about 10mph indicated all noise disappears... :(