escaping vs getaway car

escaping

noun
  • The act of one who escapes; an escape. 

  • That which escapes or leaks out; an emission. 

getaway car

noun
  • A car (motor vehicle) that is left with the motor running and a driver in position while a crime is being committed so that the perpetrators may flee the scene quickly. 

How often have the words escaping and getaway car occurred in a corpus of books? (source: Google Ngram Viewer )