Die-cast cars are miniature vehicles made from a metal alloy, typically zinc or aluminum, that is poured into molds to create detailed shapes. These cars are popular among collectors and children alike due to their durability and realistic designs. They often feature moving parts, such as doors and wheels, and can come in various scales, with 1:18 and 1:64 being common sizes. The process of die-casting allows for intricate details and high-quality finishes, making these models appealing to enthusiasts. Brands like Hot Wheels and Matchbox are well-known for producing die-cast cars, which can represent everything from classic cars to modern vehicles and even movie characters.