CAL Report VJ-272I-R-1 "Vehicle Speed and Rural Automotive Crash Injury, Part I: Estimated Traveling Speed and Fatalities” was the first CAL, report in a planned series of studies on the subject of speed and injury in automobile accidents. In the first report, it was stated in the Introduction that "Attempts to interpret speed as an index of injury causation are confounded by the complex relationships between speed, occupant injury, and many other variables. The type of accident, area of impact to the car, car size, and other variables are closely associated with the injury results. It is therefore difficult -- and perhaps impossible --to define a simple speed-injury relationship". The objective of these studies is to clarify some of the relationships between speed and injury. In this report, Part II, the speed-injury relationships for single vehicle frontal crashes are examined. However, the objective of this study is to go beyond just quantifying a speed-injury relation. The goal also includes the examination of speed to injury relationships within data subgroups - ejected or non-ejected, seat belted or non-seat belted occupants, children and adults, in various seated positions in both domestic and foreign vehicles.