Md. Code, Transportation § 11–129.1

“Limousine” means a vehicle that:

(1) Has been modified or stretched for transportation of passengers;

(2) Is driven as part of a service provided by a person that advertises itself as a provider of limousine services or registers with the Public Service Commission as a provider of limousine services; or

(3) Is equipped with amenities not normally provided in passenger cars, including a custom interior, television, video cassette recorder, musical sound system, telephone, ice storage area, additional interior lighting, and driver–passenger communication such as an intercom or power–operated driver partition.