I turned the key and started the RAV4 parked in my driveway. It immediately made unusual noices (gurgling, spitting, etc.). Within a minute, there was a loud "BOOM" under the hood and fire began coming out from underneath the car. I got out of the car and got a safe distance from it. My neighbors came running over as they heard subsequent explosions and saw black smoke billowing from my direction. Within a matter of a few minutes, the entire car was engulfed in flames. The fire department came and extinguished it. There is nothing left! BTW, I am 91 years old. This could have had a very different and sad outcome!