leadfoot vs steering wheel

leadfoot

noun
  • A driver who does not compensate the throttle position of the vehicle for road conditions or terrain, invariably slowing down while going uphill and speeding up while going downhill. 

  • One who drives quickly or without subtlety, one who often engages in and/or is fond of slamming and flooring the accelerator often. 

steering wheel

noun
  • A wheel-shaped control that is rotated by the driver to steer, existing in most modern land vehicles. 

How often have the words leadfoot and steering wheel occurred in a corpus of books? (source: Google Ngram Viewer )