Damage to Your Vehicle - Comprehensive and collision
Comprehensive coverage is also known as "other than collision". Fire, Theft, flying objects that damage glass, vandalism, windstorm, etc. Most often coverage is provided for "Actual Cash Value" the value of the vehicle at the time of loss...mileage, wear and tear considered.
Collision not only covers loss and damage that you cause, but covers damage from other that have not property damage liability or not enough as well as "hit and run" damage. Always subject to your chosen deductible, most claims you make under this coverage are charged against your loss experience and may increase your rates.