A three-wheeler is a type of vehicle that has three wheels instead of the traditional four. It is often used for transportation in urban areas, especially in countries like India and Thailand. Three-wheelers can be powered by gasoline, diesel, or electricity and are known for their compact size, making them ideal for navigating narrow streets. These vehicles come in various forms, including auto rickshaws and trikes. They are popular for their affordability and fuel efficiency, providing an economical option for short-distance travel. Three-wheelers are commonly used as taxis or for goods transportation, contributing significantly to local economies.