2013 M6 Recall !!!!
I took delivery on my 2013 M6 Coupe last Friday, 9/14/12. i just gat a call from my dealer and BMW telling me not to drive it because there is an emergency recall issued today, 9/21/12. Evidently there is an issue that causes sudden drop in oil pressure. It appears only to be on some VINs, but I would call your dealer immediately. They said that they do not yet know how long it will take to resolve, because the cause is suspected to be the oil pump, but i guess they are not sure...