"As we came round the bend we just saw this tree, literally falling in front of us. My instinct was that if I was to brake heavily I would hit the main parts of the tree, so in that split second I decided to accelerate. "I was doing maybe 45mph when we hit the tree," Mr Williams said, describing the weather as "damp, but not windy". "I couldn't see the tree or the branches, the windscreen shattered so badly. All I saw was a white light."