Nearly all common law jurisdictions impose some kind of requirement that parties involved in a collision (even with only stationary property) must stop at the scene, and exchange insurance or identification information or summon the police. Failing to obey this requirement is referred to as hit and run and is generally a criminal offence. Most car claims are settled without using an attorney.

The result of a side collision; most cars are not as structurally sound side-to-side as they are front-to-back and damage can be more severe to the vehicle and the occupant than at the same speed in a rear-end collision.