'Open up the gap in front of you...' er... Steve, the 'gap in front of me' was endless. In fact, there was the whole of Norfolk in front of me and nobody else on the road. You sound very angry for some reason. I have 'thought about this' as you kindly suggest, but can figure out absolutely nothing that I was doing wrong. She could have zoomed past at any time, but seemed bent on following me at close quarters. If you like having a tailgater behind you, please take her; you're most welcome!