When you really think about it, you probably don't use your car all that much. You drive to work – then leave your car in the lot all day while you’re inside. Or you leave town for a few days – then don’t use your car for the next three weeks. Meanwhile, plenty of other people don’t have cars, but sometimes need them.
Three new companies in the San Francisco Bay Area – Getaround, RelayRides, and Spride Share – are trying to match those idle cars with people who want to drive them. Each model is a little different, but the basic idea is the same: when you’re not using your car, you can rent it out to anyone who needs it. And if you need a car? You can rent anything from your neighbor's station wagon to a brand-new Tesla Roadster.
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