Oddities of the OP:
- "Felt heat an then turned around". Based on my experience, especially in the summer, you wouldn't notice heat that wasn't "normal" until well past the point of no return and way past the point of getting a cooler out of the bed to put it out.
- Why are the burn marks only on the cut portion of the road. The drier taller and in my experience much easier to light tall grass was not burned only the green, harder to ignite fuel
-Why is the burn linear in nature but still confined to the road and not the surroundings even though the smoke and the fire demonstrates that the wind was at 90 degrees to the direction of travel. Once a fire starts it will continue to burn outward from the source in the direction of the wind. This fire was apparently contained to a relatively speaking "small" linear area coming towards and away from the camera not in the direction of the wind?
-Why didn't the op drive it into the large lake if he had the opportunity to get back into the vehicle and drive it instead of further down the road?
-Why are the weapons out of the vehicle and next to the unburned portion of the grass? Notice the Remington 770 stock is still burning less than the length of the barrel away from tinder dry grass. Wouldn't these weapons have been in the vehicle superstructure while burning rather than on the right hand side closest to the water?
-And finally as others have noted in the followup pictures, the grass surrounding and growing up through the superstructure is green. While I don't live in Florida, I do live in Tennessee and even the the summer, our grass won't grow back that fast even when just scorched from my hot mower exhaust rather than actually burned.
While it is definitely possible, rather than taking this at face value as a Honda problem, I would use this as a lesson as to why you need to carry a fire extinguisher, clean debris from the hot places of your vehicle, PM all your fuel lines/exhaust manifolds and
make sure you have adequate insurance.
ETA:
I would consider the burning of Taurus and the Remington 770 as a blessing.