Out of all the popular cities in Japan, Okinawa is the cheapest city to hire a car in at just $42/day. Renting a car in Okinawa is 44% cheaper than renting one in Nagoya where the per day rate is around $73. Other fairly inexpensive cities in Japan to get a car hire in are: Sapporo ($51/day), Tokyo ($55/day), and Fukuoka ($56/day). While these cities typically have cheaper prices than the rest of the country, travellers looking to hire a car in Tokyo should expect to spend around $55/day on their transportation. The most popular city to rent a car in Japan is Tokyo.