2014 Hyundai Santa FE engine problems

Tl* the contact owned a 2014 hyundai santa fe. While driving, the engine blew up and flipped the hood in an upright position. In addition, the brakes malfunctioned and all the electrical functions turned off. The contact was able to pull the vehicle over as black smoke filled the cabin. The contact was barely able to exit the vehicle after inhaling black smoke. The vehicle caught fire on the side of the road and was totally engulfed in flames. The vehicle was destroyed.

First issue started when the car stalled 3 weeks ago coming off a highway exit ramp while waiting at light. Car stalled a second time while sitting in traffic shortly after. Then worked fine and had an oil change completed at the dealer on 8/2/19. On 8/11/19, car would not accelerate normally after proceeding from a red light on a state highway, check engine light came on and shortly after engine started making knocking noises that became louder after a few miles.