The image, which was posted on the Texas Department of Transportation’s Twitter shows the poor Porsche being swallowed by the fire. As is usually the case with mid-engined cars, the flames appear to have originated at the middle of the vehicle, subsequently spreading from the engine compartment to the passenger cell, up to the windshield - the firewall placed ahead of the cell kept the flames from spreading to the front section of the sportscar.
You can also notice how the driver pulled over to the side, leaving the car in its roof-down state as he exited the Boxster in order to get away from the fire.
We have to keep in mind this is a first-gen Boxster, so it was built sometime between 1996 and 2004. The maintenance factor, which is all too important given the age of the car, means it’s difficult to determine who wears the blame for the fire.