Crazy LandRover DH04 DRY

Looked up to my mirror and i could see this LandRover speeding down at me and when i turned left he did the same but with speed and had to break. Not once did he indicate and also if you look at his number plate it looks like CH04 DRY and not DH04 DRY as he has a white bolt in the middle of the D which is illegal.