Driver door rocker/chassis cracking?

[weislow]

I tried searching, but I didn't even know what to call it and couldn't come up with anything that was relevant to what I saw today. Was about to purchase this 91 e30, but noticed that the driver side rocker sill/chassis at the weld line was cracking. Wasn't sure if this is normal or a structural issue and I should stay away. Any help is appreciated!

Here's the driver side

http://i.imgur.com/pwhMFnm.jpg

Here's the passenger side

http://i.imgur.com/1bivBiL.jpg

[richardodn]

The passenger side looks normal. That's simply the way it's assembled. I'd be more concerned about the rust coming out on the driver's side. I doubt the sheet metal itself has cracked. It looks like the filler/stone shield/paint is cracking and allowing rust to form.