public PositionChangedEventArgs(Geocoordinate position)
 {
     Position = position;
 }
 public PositionChangedEventArgs(Geocoordinate position, TimeSpan elapsedTime, bool isEndOfFinalLap = false)
 {
     Position        = position;
     ElapsedTime     = elapsedTime;
     IsEndOfFinalLap = isEndOfFinalLap;
 }