Actor George Clooney will auction his Tesla Roadster at Pebble Beach this month, one of several celebrity-owned vehicles that should sell at higher than market value.

Clooney has owned this all-electric Roadster since 2008, when Tesla Motors assembled the first 100 cars at its shop in Menlo Park, Calif. As such, Clooney's car is a Signature 100 series with only 1,700 miles and is expected to sell for $100,000 to $125,000, not far off from its original price of $109,000. All proceeds will benefit Clooney's Satellite Sentinel Project, a nonprofit that uses satellite imagery to track activity in Sudan and prevent the "return to full-scale civil war," according to the organization.

Tesla has sold about 2,100 cars since 2008 but stopped taking U.S. orders last year as its contract with Lotus Cars began to wind down. Lotus had agreed to produce 2,500 Roadsters, based on its midengine Elise, but the company halted imports last year due to noncompliance with U.S. airbag regulations. A new Elise won't return until 2014 or 2015 (as might a new Roadster). The Roadster is still on sale in Europe and Asia.

Clooney's Roadster is one of 122 cars scheduled for the Gooding & Co. auction Aug. 18-19. Jay Leno's Fiat 500 Prima Edizione, No. 2 of the first 500 cars shipped to the U.S., could reach as high as $35,000, Gooding said, and will benefit another charity for military families. Jay Kay, lead singer of the U.K. funk band Jamiroquai and world-class gearhead, will auction his rare coupe, a Frua-bodied Maserati A6G (below), for an estimated $1.5 million.

Check out the full line of cars here, including the 1969 Bizzarrini Manta ($1 million), 1960 Porsche RS60 Spyder ($2.25 million) and 1936 Mercedes 540 K Special Roadster expected to set an auction record.

Correction: An earlier version of this story stated there would be 155 cars on auction. The correct number is 122.

[Source: Gooding & Co. via USA Today]