This article explores the differences in the application of car door lock actuators across various vehicle models, including economy, mid-range, luxury, and commercial vehicles. It explains how car door lock actuators play a critical role in vehicle security and convenience, with variations based on factors such as vehicle size, cost, technological features, and security requirements. The article highlights the key differences in actuator design and functionality, from basic manual systems in economy cars to advanced smart keyless systems in luxury vehicles. It also discusses the growing integration of actuators with modern vehicle technologies, offering insights into their future evolution.