Definition of Open Carrier - This is Auto Transporting that does not protect your vehicle from the elements.
Shipping your vehicle on a open carrier does expose it to the weather, but the Car Transporting companies can fit more vehicles on their truck and this lowers the cost of Vehicle Shipper. Damages from the elements are rare, but can occur. Most people are willing to take the small risk to save a considerable amount of money.
Definition of Enclosed Carrier -
This is vehicle transport that protects your vehicle from the elements.
Going Enclosed can protect your vehicle from weather, rocks and theft. In most cases enclosed Car Transport will cost double of what it would cost to ship on an open carrier. These companies have more experience with high end vehicles. Enclosed Auto Transporting companies tend to give more personable service for each car they ship.
If you have the extra money we recommend shipping enclosed.