Which type of lien arises from unpaid services related to an automobile?

A mechanic's lien arises from unpaid services related to an automobile, as it specifically addresses claims made by service providers, such as mechanics, for repairs or services performed on a vehicle. When a mechanic completes work on a car and the owner fails to pay for that service, the mechanic has the right to place a lien on the automobile to secure payment. This lien essentially provides the mechanic with a legal claim against the vehicle until the debt is settled.

In this context, the other types of liens mentioned involve different scenarios. An artisan's lien generally covers services done to personal property by artisans and might overlap with mechanic's cases, but it is more narrowly defined and typically pertains to work done by craftspeople. A real estate lien relates to property such as land or buildings, while a judgment lien results from a court ruling on a monetary judgment in a civil case, neither of which apply to services related specifically to an automobile. Thus, the correct answer focuses on the nature of the work and the ownership of the vehicle, clearly identifying the mechanic's lien as the appropriate choice.