driving vs heading toward

driving

adj
  • That drives (a mechanism or process). 

  • That drives forcefully; strong; forceful; violent 

noun
  • In particular, the action of operating a motor vehicle. 

  • The act of driving the ball; hitting the ball a long distance, especially from the tee to the putting green. 

  • The action of the verb to drive in any sense. 

heading toward

How often have the words driving and heading toward occurred in a corpus of books? (source: Google Ngram Viewer )