It seems that car hire in Japan may not always be related to transport.
Orix Auto Corp and Times24 Co, two of Japan’s largest rental car firms, realised in the summer of 2018 that as many as one in eight of their hire cars were not actually travelling anywhere after being reserved and paid for.
A survey of users showed that some were booking a car so they could have a nap during their lunch break, away from the disapproving scrutiny of their bosses.
One businessman admitted that he preferred to work from the car and would set up an “office” in the front seat.
Another user left bags in a car when he could not find a coin locker in a train station and needed to leave his luggage somewhere.
One harassed man said he hired a car so he could site and eat his packed lunch in peace and could not find anywhere else to sit.
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More one-off reasons included to get changed to attend a Halloween party, to practice karaoke, for an English-language class and even to do facial stretches in private, NTT said.
There's more at the link.
Next step: offer minivans or small RV's for rent, already set up with tables and chairs in the rear compartment instead of car seats. Team meetings would be a snap - and given Tokyo's absurdly high office rentals, it'd probably be cheaper to hire the van than pay rent on office space. Alternatively, hire car companies can buy vehicles without engines (or take the engines out of older vehicles that have reached the end of their fleet life), and park them ready for non-mobile rentals. They could then offer them for a lower fee to customers looking for space rather than speed.