軽自動車 (Kei Jidosha) is a category of small cars in Japan, designed to be compact and efficient. These vehicles have specific size and engine limitations, typically featuring engines with a maximum displacement of 660cc. Due to their size, they are often more affordable to purchase and maintain, making them popular among city dwellers. In addition to their economical benefits, 軽自動車 are known for their fuel efficiency and ease of parking in crowded urban areas. They also enjoy lower taxes and insurance costs compared to regular cars, contributing to their appeal among a wide range of drivers in Japan.