Tl*the contact owns a 2004 porsche cayenne. while driving approximately 60 mph, the contact heard a ticking noise followed by a loud, thumping noise which caused the vehicle to accelerate. the local authorized dealer stated that the bearing and drive train needed to be replaced. the manufacturer had not been notified. the vehicle was being repaired by the dealer. the vin was unavailable. the current mileage was approximately 93,000. the failure mileage was approximately 90,000.