Jeff Vicory and his girlfriend, Lindsey Goodrich, moved to Seattle two summers ago from Lewiston, Idaho, for a taste of city life.

"We moved downtown - all the big buildings and that. It's mesmerizing for somebody from a small town," he said.

But living in the big city meant he had to get rid of his truck. He missed driving in the mountains, hunting, chopping wood and camping.

"I came over here and was just trapped downtown for so long. Months and months and months, I couldn't get away. I was missing the outdoors," Vicory said.

After investigating car rentals, Zipcar and Car2Go, he found a solution that suited him: Turo, a company that facilitates car rentals from strangers.

Although peer-to-peer car sharing hasn't grown with the ferocity of Uber or Lyft, the practice has found a niche in the Pacific Northwest that allows tourists and carless locals to explore Mount Rainier's majesty, walk through the Skagit Valley tulip fields or taste Vancouver, B.C.'s dim sum. And it allows vehicle owners to reap income from cars that might sit vacant otherwise.

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Turo is to cars as Airbnb is to rooms: Owners list their rides on a website and set specific booking times. Renters coordinate an in-person key exchange and hit the road. Turo takes 25 percent of the fee, insures the rental and settles disputes over the condition of the car. The company also contracts should something go wrong during the rental.

Amy King began renting out one of her family's cars last fall. The full-time Seattle-area mom studied international business and entrepreneurship in college. Whether starting a baby-sitting cooperative or holding trunk show sales for jewelry, she hunts for ways to trim her household's budget or boost its bottom line.

King uses an SUV for carting her 8- and 9-year-old boys to school and soccer practice, but figured her husband, Roy, could take Microsoft's company shuttle to work rather than driving the family's 2009 Honda Accord. In about a year, the family has made more than $1,000 by renting out the Honda via Turo, she said.

"I looked at what it costs my husband to drive to Redmond. It was $5 a day. And that was before the tolls started," she said, referencing the Seattle-area city where Microsoft is headquartered.

Plus, car sharing serves an ulterior motive. "When he doesn't take his car, he gets more steps on his Fitbit, and I want him to get exercise," King said. "He's aware of my plot to keep him out of his car."

For King, sharing feels good.

"I really like the efficient use of resources," she said. "It just seems better for the planet."

Another owner, Lee Colleton, shares his environmental gospel with his two cars - an electric Mitsubishi i-MiEV and (for longer trips) a biodiesel Volkswagen Jetta.

"I'm not doing it for financial reasons, but ideological reasons. To give people the option to rent a carbon-neutral vehicle in Seattle," he said. It doesn't hurt that rental fees offset ownership costs, Colleton said.

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Unlike Airbnb, Uber or Car2Go, peer-to-peer car sharing hasn't gone mainstream. Turo was founded in 2009 under the name RelayRides. The company launched in 2010 and came to Seattle in 2012.

At the time, some predicted it would grow quicker than Zipcar and Car2Go.

"If you asked me five years ago, I would have predicted peer-to-peer car sharing would have taken off rather than fleet-," said Alan Durning, of Seattle's Sightline Institute. "If you're Car2Go, you have to buy cars, maintain and operate them. If you're RelayRides or now Turo, all you have to do is operate a website."

Turo did not provide figures about its rental volume, but on a recent search of its website, more than 80 vehicles in the Seattle area were available for an upcoming weekend.

The model has been gaining traction, said Susan Shaheen, who studies mobility and transportation at the University of California, Berkeley.

"What happened since these ideas have been introduced has been a fair amount of experimentation on how to grow this service," she said.

That's meant some trial and error. RelayRides recently rebranded as Turo to reflect the company's shift away from short-term rides.

"It wasn't worthwhile for owners of vehicles to clean a car out and rent it out for a couple hours. Our growth was coming from travelers wanting to rent the car out for a few days and owners wanting to make more money for less effort," said Steve Webb, the company's spokesman. "The name Turo has connotations of travel, gran turismo, adventure."

Average rentals now last about five days, Webb said.

He was quick to highlight the service's quirky selection: In the Seattle area, you can rent a Toyota Previa, a Vanagon Westfalia or a Tesla Model S.

"The types of vehicles people are renting out are reflections of the unique aspects of these communities," Webb said.

Turo claims its prices are 30 percent less, on average, than a traditional car-rental company. On a recent search of the site, a 2007 Toyota Corolla was available on an upcoming weekend for $27 a day. A 2015 Mercedes-Benz CLA250, listed by the same owner, could be rented for $149 a day.

There have been no complaints to the state Office of the Insurance Commissioner about RelayRides or Turo, which touts community. It used to install devices that would allow renters to unlock cars without the owner present, similar to Car2Go. Now Turo requires a key exchange.

"People are more respectful of another person's belongings if you've met that person and looked them in the eye," Webb said.

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Not every rental goes smoothly.

King said someone smoked in her car once and tried to cover up the smell with an annoying artificial scent. Turo gave her $100 toward a detail for the car.

Colleton has rented his Jetta out more than 100 times and had one serious problem. He said a young man rented the car to travel, apparently for a Cinco de Mayo party.

"On Seis de Mayo, I got a call from him and he's in jail on a DUI and the car is in impound," Colleton said. Turo covered the impound fee and towing costs. He didn't take a financial hit, but it took him a couple hours to get his car back.

Despite the impound, Colleton's been so pleased with the renting experience, he suggested his mother rent out her new car.

King said it would be difficult to share her car if she had an "emotional attachment."

"I think you'll just worry and be uncomfortable with someone else in your baby," she said.

For renters, there are limits to the adventure advertised by Turo. Although some owners advertise Northwest Forest Passes or Discover Passes, taking a Turo rental on unpaved roads violates the company's terms of service, which lowers your liability coverage and leaves you without protection if the car is damaged.

Although 24/7 roadside assistance is included, renters are responsible for incidental repairs like flat tires and other damages. Turo advises renters not to count on their credit-card-related or personal insurance without checking first. Renters can purchase temporary insurance coverage through Turo.

Under Washington law, owners should not be liable for trips taken under the -share program.

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Vicory's first Turo trip satisfied more than wanderlust. Last summer, he rented a Volkswagen Passat to hike up to Colchuck Lake near the Enchantments with Goodrich (he didn't know off-road travel violated Turo's terms).

Neither Goodrich nor the vehicle's owner knew what he planned.

Once they arrived at the lake, the two hikers "enjoyed the view for a minute up there, and I got down on my knee," Vicory said. She said yes.

They've been renting cars through Turo once or twice a month since.

"It was because of RelayRides that I could get up there and do such an awesome proposal," Vicory said. "I wanted to be at a beautiful place."

"I really like the efficient use of resources. It just seems better for the planet." I really like the efficient use of resources. It just seems better for the planet."