It’s believed the two cars were heading in opposing directions when they came into contact. The GT-R driver, most likely trying to avert the impending crash, ended up in a ditch on the side of the road. It’s not known whether the car burst into flames due to internal damage or whether its hot exhaust pipes ignited the scrub underneath.
Thankfully, the occupants of all the vehicles involved were unharmed. That, of course, does not include any bruised egos.