Vehicles are machines designed for transporting people or goods from one place to another. They come in various forms, including cars, trucks, buses, motorcycles, and bicycles. Each type of vehicle serves different purposes, such as personal travel, commercial transport, or public transit. Most vehicles operate using engines that can be powered by gasoline, diesel, electricity, or alternative fuels. They are equipped with wheels, allowing them to move on roads, while some vehicles, like boats and airplanes, are designed for travel on water and in the air, respectively. Safety features, such as seat belts and airbags, are also important components of modern vehicles.