Robert,
I had a rear main seal fail on my 996. The dealer replaced it. I had another issue with it and it was replaced. At that time they told me if it failed again I would get a new engine. This was at about 38000 mi. It did not fail again.
I know you sell Nissans for a living but I think it's time you give it a break. People are having issues on this forum and I can't imagine there aren't others not on this forum with the same problems. Remember this car was launched in the Winter. Summer is on it's way. Sell em while they're not hot.