I don't know what your source is, I found the picture (bonnet with louvres) on a Japaneese website, this is the translation of the text related to the picture:
A small four-wheel drive car "Japan's first four-wheel drive car" developed at the beginning of the Showa era in the world was found miraculously almost in its original shape at a car repair shop in Kyoto city, and Shizuoka obtained the vehicle Prefectural Gotemba city NPO corporation began activities such as exhibition and donation aiming for restoration. The NPO corporation says, "Japan's valuable technical heritage, I definitely want to restore and run again."
Kurogane four rise is the official name "ninety-five type small passenger car". It was founded in 1959 by Mr. Tetsuji Makita, a founder and engineer of the automaker "Nippon Internal Combustion Machine" in Tokyo. Approximately 4,500 units were produced in about 10 years until the end of the Second World War, and used as a military car in the former army and navy army.
"Four-rise" is four-wheel drive, said that it required extremely advanced technology at the time. Mass production of compact cars was the first in the world in the world, and was born approximately 6 years earlier than "Bantam BRC" made in the United States, which is the original form of the famous small four-wheel drive car "Jeep".
There are only three vehicles that have been confirmed to exist in the world so far, only one late model of the track type remaining in the Japanese automobile museum in Ishikawa Prefecture in Japan. The fourth car found this time is extremely valuable in the early type of passenger car type.