I was driving to pickup my dog from daycare centre and when I arrive to house, put my car in Park then a huge amount of smoke came out from the front hood of car. The smoke got bigger and bigger within 30 seconds I couldn't see anything from front of car and around driver's seat. There was no Hazard alerts or signs on my car that my car was overheating. There was no signal or emergency shut off on the car when the overheating began. My boyfriend was in car at time. My dog was walking outside with daycare caretaker when a flame started on Driver's side engine. The flame lit and sparked into a huge flame. I ran out of car while my boyfriend yelled for everyone to back away from car before it explodes. The flame grew and engine bursted into flames, a loud explosion followed. I did not have any time to even gather what was going on before my eyes, I was trembling in shock and could not speak clearly. Immediately, I called police to come put out the fire. The fire department was transferred into my phone call. I was able to give address and they arrived on scene within 3-4 minutes. Fire department put out the flames with a water hose. The car was completely damaged, falling apart into pieces, front hood was on fire to the back seats, doors were on fire, steering wheel was gone, entire front dashboard and chairs were melted and gone in pieces. I started feeling sick and overwhelming stressed.