Why is transferring ownership of a property in real estate distinguishable from transferring ownership of other belongings, like a vehicle?

Why does transferring ownership of real property differ from transferring ownership of personal property, such as a vehicle?
Why is transferring the title to real estate distinct from transferring the title to other items, like a vehicle?

Since land is enduring and can have numerous owners throughout time, different rights associated with the land (such as mineral, air, or utility rights) might have been acquired by third parties before you acquire the land, even if it has never been developed before. Therefore, to transfer an unencumbered title to a parcel of land, it is essential to establish if any outstanding rights exist.

Real property is of a permanent nature and can undergo multiple ownership changes over time, along with various rights associated with its use. To ensure a smooth transfer of legal ownership for real property, it is essential to assess any existing rights attached to the property.

Because property ownership is enduring and can be held by multiple individuals over time, different entitlements related to the property, such as mineral, air, or utility rights, may have been obtained by others by the time you acquire it, even if the property has never been developed before. Thus, to transfer a clean ownership title to a specific property, it is essential to initially ascertain if any outstanding rights exist.