I bought my bimmer from a drunk, and he had been in a small run in with a curb and he said it was fine because it didnt hurt the outside of the car.
I found out that the camber was wearing through tires like no other... it needed new control arms and new inner and outer tie rods
check those first
if your not sure take it into an alignment place they will tell ya
<span style='color:blue'>Proud Member of the Top Down Club</span>
<img src='http://www.joe-ks.com/archives/WithoutWindows.jpg' border='0' alt='user posted image' />