A new G80 caught fire yesterday and it's apparently because it drove into some flammable materials.
Apparently the G80 drove over a box filled with combustible products. ZDNet describes the box as being filled with "air cleaner products mainly installed in large trucks". From the picture gathered below, it appears to be large air filters that used to hang from the side of the hoods of big rigs before aerodynamic improvements sent the bulky filters inside the engine compartment.
The driver of the G80 believes that friction between the components inside the box and the undercarriage of the car led to the fire.
Investigators found the box in question underneath the car which would confirm what the driver is saying.