Kenneth Kasten, 50, owner of the Sanibel Shell service station, was driving the Porsche on McGregor Boulevard near Punta Rassa Road at 6 a.m. when he lost control and flipped the car into some mangroves, according to the Florida Highway Patrol.
The Porsche - owned by Nanelle Wehmann of Sanibel - was the only vehicle involved in the crash, which occurred in a 55-mph limit zone.
The FHP estimated the damage to the Porsche at $50,000.
Kasten wasn't seriously injured and left the scene before emergency crews arrived, Cpl. George Kantor of the FHP said. Alcohol is not believed to have been a factor in the crash.
Authorities arrived on scene to find the car smashed, abandoned and upside down.