Driving on Adobe Road just outside of Penngrove early Wednesday, a woman lost control of her Ford Mustang and flipped the vehicle onto its roof. She was able to crawl out of the crushed car with just cuts and bruises, according to initial reports.

The 6:23 a.m. crash blocked heavy traffic during the morning commute along the rural route between Penngrove and east Petaluma. The CHP had suggested drivers take Old Redwood Highway until the crash was cleared just before 8 a.m.

The newer model Mustang crashed just east of Davis Lane , on the outskirts of Penngrove.

“She was wearing her seat belt. It probably saved her life. (The crash) crushed down the whole entire roof,” said Rancho Adobe fire Capt. Tim Caldwell, who responded with firefighters and an engine.

A bystander stopped to help and the driver, who was able to get out of the overturned car through less than a foot-wide opening at her passenger-side window, Caldwell said.

Despite the extensive damage to the car the woman didn’t appear to have major injuries and she declined medical treatment.