Maryland Department of Transportation

Airbnb for cars is here. And the rental car giants are not happy.

Airbnb for cars is here. And the rental car giants are not happy.

They have fleets with hundreds of thousands of vehicles and command multibillion-dollar streams of revenue.

But in the rapidly shifting transportation landscape, even the Goliaths of the rental car industry -- some of the best-known brands in the world -- worry about being left behind.

That may explain why some of the largest rental car companies have spent several years waging a quiet legislative war against start-ups led by a company called Turo that are trying to change the way people rent and own vehicles. Turo is a peer-to-peer car-sharing company -- think Airbnb for cars.

Like Uber vs. the taxi industry, this fight is a clash between an old-school business model...

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