X17 XCLUSIVE - Mischa Barton Gets License Back, Buys A Caddy (Named Maude), Runs Out Of Gas!

Mischa Barton purchased a bright turquoise Cadillac convertible yesterday -- her first car since she lost her license back in December 2007 when she was arrested on drunk driving charges.

The car is a really beauty (and hey, it matches Mischa's lovely eyes), BUT it didn't come with a full tank of gas!





Unfortunately, Mischa learned the hard way, as her "new" car, which she told us she's named Maud, sputtered smoke as she drove on fumes. X17 photographers found The O.C. hottie stranded on the side of the road in need of help and what did we do ... we rescued her, of course!

Our photographer brought a can of gas to the lady in distress and she was oh-so grateful, which we love!



Our shooter said this about Mischa: "She was so nice and down-to-earth. She thanked us for bringing her gas and she posed and did some cute shots at the gas station when she finally made it there to fill up her tank. I think she was genuinely happy we found her!"




Awww, we've found a new friend -- love ya, Misch!