At 21,100 miles, front tires on Rogue totally bald, with no out of ordinary driving experience such as shaky front end, tires wobbling or vibration in steering wheel or brake pedal. tires were properly inflated as rear tires were, I haven't got a clue as to how this happened ?!!! Am referring this to dealer, but am of the belief that the "Continental" brand name of tires placed on vehicle at factory and prior to new car purchase were defective.