i'm looking to buy a sweet looking 530i w/ about 85k orig miles. it was stored for a while and recently taken out of storage to be used as a daily driver. the owner says no major probs in the past but i've heard some horror stories about these - sensitive head gaskets, mountg. probs on rear axel, etc. ..............could i please get the good the bad and the ugly on this one - which i'm planning on using as a daily driver myself. thanks.