Symbolic Delivery:
Symbolic delivery refers to the transfer of possession or control of an item through the use of symbols or representations, rather than through actual physical delivery. In the context of giving keys of a car to another person, this would be considered symbolic delivery.

Explanation:
When a person gives keys of his car to another person, it is not necessary for the physical car to be physically handed over. The act of giving the keys symbolizes the transfer of possession and control of the car. The person receiving the keys can now use the car as if it were their own.

Example:
For example, if John owns a car and he gives the keys to his friend Alice, it signifies that John is transferring the possession and control of the car to Alice. Alice can now use the car, drive it, and take responsibility for it.

Legal Perspective:
From a legal perspective, symbolic delivery can be sufficient to establish a transfer of ownership or possession, as long as the intention of both parties is clear. It is important to note that in some cases, additional steps may be required to complete the legal transfer of ownership, such as signing a bill of sale or transferring the car's title.

Advantages of Symbolic Delivery:
Symbolic delivery can be advantageous in situations where physical delivery is not practical or possible. It allows for the efficient transfer of possession and control without the need for physical transportation of the item. Symbolic delivery is commonly used for the transfer of intangible assets, such as intellectual property rights or digital goods, where physical delivery is not applicable.

Conclusion:
In summary, when a person gives keys of his car to another person, it is an example of symbolic delivery. The act of giving the keys symbolizes the transfer of possession and control of the car. Symbolic delivery is a valid and commonly used method for transferring ownership or possession of an item when physical delivery is not possible or practical.