Lindsay Lohan -- Clear the Road ... She's Driving Again

Lindsay Lohan should have learned 2 things over the last couple of years ... drugs are dangerous, and she's a dangerous driver .... maybe she learned only one of them.

Lindsay got behind the wheel of a Porsche Panamera Friday in New York City ... apparently heading for the Hamptons for the Labor Day weekend.

You may recall ... Lindsay has crashed various whips over the years -- slamming into semis, allegedly striking unsuspecting pedestrians, and taking the wheel in various altered states.