The financial responsibility law requires of motor vehicles to submit proof of financial responsibility in the event of a collision.

This law requires that drivers of motor vehicles to submit proof of financial responsibility in the event of a collision. 

Driver should be the missing word in this sentance

This is called visual imagery. it is a memorization technique wherein an idea or a term is associated with an image, this in remembering ideas, especially as humans are very visual learners. this is also why visual aids a lot for memory retention.