From the AP via the NYTimes:

Redondo Beach police say they arrested a 13-year-old girl for allegedly driving under the influence, evading arrest and possessing brass knuckles after a high speed chase that ended when she crashed... police believe the [five] teens were trying to steal alcohol when they were spotted.

Whoever thought to teach her underage butt to drive should've also mentioned there are less dramatic (and dangerous) ways to score alcohol. (Yes, yes—13-year-olds shouldn't be drinking, but if they do, they certainly shouldn't be drinking while driving and eluding police. That is the trifecta for bad teenage judgment.)