collision vs fender-bender

collision

noun
  • An instance of colliding. 

  • Any event in which two or more bodies exert forces on each other in a relatively short time. In a collision, physical contact of two bodies is not necessary. 

fender-bender

noun
  • A minor accident involving at least one motor vehicle. 

How often have the words collision and fender-bender occurred in a corpus of books? (source: Google Ngram Viewer )