Surprise of all wonders, the Nissan Leaf has suffered another delay, but this time there's at least an amusing anecdote to quote while you wait. You see, The Northern Echo quotes a Nissan spokeswoman as saying that the Leaf's backup warning signal emits a loud beep, but UK law requires that such sounds be disabled between the hours of 11PM and 6AM. "The audible system on the Leaf did not allow for that to be done, so the beeping sound is being removed entirely before the cars can be driven on roads in this count