Someday, only the car key could provide proof that a customer rented a car, save for a receipt at the end.

But some analysts wonder whether the subscription model will last since customers are essentially renting, not buying, music.

In the 1980s, some video rental stores also offered a smaller number of movies recorded on Beta tapes that customers could rent.

The Japanese Government required customers to rent their phones from the service provider, paying about $600 a year.

"We carry the old films, but you can't convince the customers to rent them," she said.

But she said Travelocity's other customers were renting more compact and economy vehicles.

Karaoke clubs can be found all around and customers can either sing to everyone or rent a private room.

The goal is for industry to develop the winning entry into a commercial vehicle that the Government and other customers will rent for missions.

The store was a place where customers can make overseas calls, rent cellular phones or have pagers connected.

Some users reportedly found the company used long delays at the shipping stage to reduce the number of films a month a customer can rent.