BMW stops deliveries on 2013 M5s

It has just been learned that deliveries of the 2013 BMW M5, M6 Coupe and M6 Convertible have been put on hold by BMW due to a potential issue with the engine oil pump in the S63TU powerplant.
The models affected are the ones produced for model year 2013.
The models equipped with the S63TU engine may suffer a sudden loss of oil pressure that could cause severe damage to the engine.
BMW owners that are already in posession of the affected models are being contacted by BMW Customer Service and instructed to refrain from driving the vehicle.
http://www.bmwblog.com/2012/09/21/bmw-stops-delivery-on-new-m5-and-m6-models-due-to-oil-pump-issue/