Engine Shut Off Without Warning problems of the 2014 Toyota RAV4

While I was driving in capitol reef national park on a well graded and fully maintained dirt road, all the lights in my dash started flickering, and then my cars engine shut down. It felt like I was driving / coasting in neutral. I pulled over and put the car in park, then smoke started coming from beneath the hood. I got out of the car. It was a little smoke, then more, and then subsided to being barley noticeable after a couple of minutes. After it subsided, I got back in the car to try to start it, hoping it was an overheated engine and I might get the car to turn over. It would not start. I called a tow truck. Shortly after that, I noticed a hissing noise coming from beneath the hood, saw a liquid dripping beneath the the front left (drivers side) part of the car. I also saw a small flame. I called 911 to report that my car was on fire. Within 10-15 minutes, the car was completely engulfed in flames. The park ranger, sheriff, and fire department showed up shortly after that. A charred car frame is essentially what's left.