The Tesla Roadster is no longer on sale, and with attention on the recently-launched Model S, the upcoming Model X crossover and a rumored BMW 3-Series-sized Tesla sedan, it may be some time before the company produces another sports car.

That means you're limited to used vehicles, and what better model to go for than a little-used example previously owned by Hollywood superstar George Clooney?

Where many celebrities own a token Toyota Prius, Clooney went the whole hog and bought a Tesla Roadster--a 2008 "Signature 100" model, to be precise.

Inside Line reports that the car, with only 1,700 miles on the odometer--no doubt thanks to George's busy schedule--will cross the auction block on August 19, during the 2012 Pebble Beach Concours d'Elegance.

It's expected to fetch $100,000-$125,000, but rather than filling Clooney's coffers the money will go towards the Satellite Sentinel Project, an organization that helps prevent wars in southern Sudan by monitoring the borders between north and south Sudan.

"This is an incredible opportunity to purchase a modern collector car with all the right elements: one-owner, celebrity provenance; historical significance; limited-edition rarity and philanthropic ties", said David Gooding, president and founder of Gooding & Company auctioneers, who will sell the car.

The Obsidian Black Metallic Roadster is number 0008 from the run of 100 special editions, and features a two-tone leather interior.

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