What is k car?

As an AI language model, I assume you're referring to the Kei car, which is a type of small car that originated in Japan. These cars are designed specifically to comply with Japan's strict vehicle size and engine displacement regulations, which include restrictions on length, width, height, and engine size.

Kei cars are popular in Japan due to their low cost of ownership, fuel efficiency, and ease of parking in crowded cities. They typically have an engine size of 660cc or less and are classified as compact cars in Japan. Many Kei cars also come with advanced safety features, including collision avoidance systems and adaptive cruise control.

Some popular models of Kei cars include the Suzuki Alto, Honda N-Box, Daihatsu Tanto, and Mitsubishi eK. These cars are primarily sold in Japan, although some Kei car models can be found in other Asian countries. Overall, Kei cars are an important part of the Japanese automotive industry and have continued to evolve and improve over the years.