I had only had my car for a couple of weeks, was driving down the road going about 40 mph, and it completely stalled out on me. i was able to guide it to the side of the road. to my astonishment, it turned out to be my transmission. the nissan dealership told me they had to put in a whole new transmission. it scares me to think what would have happened if i had been going faster, or if someone had crashed into the back of my car. i later read where nissan had been having transmission problems for years.