History and Evolution of Pickup Truck Doors and How They Open and Close From Past to Present Pickup truck doors have made significant advances in design, performance, and technology over time. This evolution has kept pace with changes in the automotive industry and the diverse needs of users. Pickup trucks are considered one of the most important commercial and personal vehicles due to their practicality and cargo carrying capacity. In this article, we will examine the details of their design, types of doors, and their opening and closing mechanisms from past to present. Pickup Truck Doors In the early decades (1920s and 1930s), pickup trucks were initially designed as simple and efficient vehicles for farmers and workers. The design of early pickup trucks focused on simplicity and efficiency. The driver's cab doors during this period were usually made of simple metal and had a very basic structure. • How they open and close: During this period, the doors were opened and closed using simple hinges. The handles were often made of metal or wood, and the locking mechanism was manual and mechanical. These doors were designed for basic protection only, focusing more on strength and durability. • The tailgate: The rear door, or “tailgate,” was also very simple in design. Often, these doors opened with hinges at the bottom and a metal chain was used to hold it open. This structure was designed to carry heavy loads and make unloading easier. 1940s and 1950s: The beginning of complexity in design As the automotive industry advanced and the demand for more versatile pickup trucks increased, door designs also changed. During this era, pickup trucks were used as multi-purpose vehicles. • Improved cab doors: Doors became stronger and safer during this decade. Locking mechanisms also became more advanced and included key locks. The handles also became more ergonomically designed. In some models, the door windows were opened and closed manually, indicating the beginning of attention to the comfort of the driver and passenger. • Cargo doors: During this period, the design of the rear doors of pickup trucks became more diverse. The opening and closing mechanisms became smoother, and in some models, the retaining chains were replaced with more advanced locking mechanisms. 1960s and 1970s: The emergence of modern pickup trucks As the 1960s entered, pickup trucks were also used as family and city cars. These changes led to the design of the doors being made in a more modern and user-friendly way. • Cabin doors: During this period, electric windows were introduced for the first time in some luxury models. The doors were also made of lighter but stronger metals such as reinforced steel. The doors were better insulated to prevent the penetration of sound and water. • Cargo door: For ease of use, the rear doors were equipped with smoother locking and opening mechanisms. Also in this decade, some pickup trucks had double-sided doors or the ability to open from multiple directions. 1980s and 1990s: Technological advances in doors In the 1980s and 1990s, the automotive industry underwent enormous changes. The technology and design of pickup truck doors were no exception. • Central locking system: One of the most important developments in this period was the introduction of central locking, which allowed drivers to open or lock all doors simultaneously. This system was first seen in more luxurious pickup trucks, but gradually became common in economy models. • Electric doors: During this period, the use of electric motors in the mechanism for opening and closing door windows became very common. • Cargo doors: During this decade, some pickup trucks were equipped with folding or sliding doors. These doors allowed for easier loading and adaptation to different environments. 2000s and beyond: The era of advanced technology and safety As the 21st century entered, pickup trucks were recognized as advanced and high-tech vehicles. Door designs also underwent major changes in accordance with modern needs. • Cabin doors: • Smart systems: The use of keyless entry systems and smart locks is one of the prominent features of modern pickup truck doors. • High safety: The cabin doors were equipped with safety systems such as child locks and crash protection. • Sound and heat insulation: The use of advanced materials to reduce noise and maintain the interior temperature of the cabin. • Cargo doors: • Automatic systems: Some pickup trucks were equipped with automatic opening and closing systems or remote control. • Multi-purpose design: The rear doors were designed to open in different directions or even become a loading platform. Future pickup trucks and new technologies In the future, we can expect pickup truck doors to be fully intelligent and connected to the car's central systems, thanks to technological advances such as artificial intelligence and the Internet of Things. • Smart doors: Hand gesture recognition for opening and closing, use