Shipping cars in containers offers several advantages over other transportation methods. Here are four key benefits:

1. **Protection from the Elements**: Containers provide a secure and weatherproof environment for vehicles during transit. This protection helps to prevent damage from rain, snow, dust, and other environmental factors that could potentially affect the car's exterior and interior.

2. **Reduced Risk of Theft and Vandalism**: Shipping cars in containers minimizes the risk of theft or vandalism since the vehicles are securely locked inside the container. This is particularly important for high-value or rare automobiles that might be more attractive to thieves.

3. **Economical for Overseas Transport**: Using containers for shipping cars overseas can be cost-effective, especially for bulk shipments. Containers can hold multiple vehicles, which helps to spread the costs associated with loading, unloading, and transportation across several cars, potentially reducing the per-vehicle shipping cost.

4. **Flexibility in Shipping Schedules**: Container shipping often offers more flexibility in terms of transportation. Since containers can be loaded onto various types of transportation, including ships, trains, and trucks, it's easier to coordinate the shipment according to the needs of the supply chain, without being as reliant on specific car carriers or routes.

It's important to note that while container shipping has these benefits, it may not always be the fastest method, especially for shorter distances or when compared to shipping by roll-on/roll-off (RO/RO) vessels, where the cars are driven directly onto the ship. However, for many export and import operations, the advantages of container shipping make it a popular choice.