Mischa Barton dress vintage car sunglasses mbarton040810_03-full.jpg

Yesterday afternoon we spotted Mischa Barton cruising around Hollywood in her vintage Cadillac (who she's named Maude) but at one point during her joy ride, the car broke down!

Rather than getting frazzled, Mischa flashed us a smile and hoofed it until her ride was fixed. Gotta give those gorgeous gams a workout!