Another Bad Decision ...
We got this pic of her brand new Porsche -- the entire right side riddled with scratches and dents from an accident.
The good news -- Lindsay wasn't driving. The bad news -- She let the 22-year-old son of a friend drive the whip, which he scraped against a wall while trying to back out of a driveway.
We're told Lindsay is not upset because the kid has insurance and his mom said she'd pay anything insurance didn't cover.
As for the kid -- we're told he "profusely apologized" and Lindsay said she understood.
Lindsay Lohan -- making the case for public transportation in L.A.