I was driving in the middle lane of the motorway late one evening with my two young boys. We had just driven past a slip road when a large black sporty looking car appeared out of nowhere on my left. It didn't have its lights on, despite it being a dark evening, and was driving at speed. A fraction of a second later it swung out into my lane forcing me to swerve so violently I almost lost control of my car. The next thing I knew there was no sign of the car anywhere, either behind me or in front of me. It had simply vanished.
