Out of all the popular cities in Japan, Okinawa is the cheapest city to hire a car in at just £27/day. Renting a car in Okinawa is 63% cheaper than renting one in Kagoshima where the per day rate is around £70. Other fairly inexpensive cities in Japan to get a car hire in are: Sapporo (£27/day), Tokyo (£27/day), and Ishigaki (£31/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 £27/day on their transportation. The most popular city to rent a car in Japan is Tokyo.