SHORTLY AFTER DRIVING WITH NO ISSUES, THE PARKED CAR STARTED TO SMOKE FROM UNDERNEATH THE HOOD. WITHIN SECONDS, A LARGE FIRE HAD STARTED WHICH COMPLETELY CONSUMED THE CAR AND ALSO SPREAD TO MY WIFE'S CAR AND THE HOUSE'S CARPORT. INSURANCE INVESTIGATOR INFORMED US THAT THE FIRE LIKELY STARTED IN/NEAR THE ENGINE TOWARDS THE DRIVERS SIDE BASED ON WHERE THE HOTTEST PARTS OF THE FIRE APPEARED TO HAVE BEEN. HOWEVER, NO CONCLUSIVE DETERMINATION WAS MADE REGARDING THE CAUSE. THE CAR WAS IN GOOD CONDITION AND HAD NOT HAD ANY MAINTENANCE WORK PERFORMED ON IT RECENTLY. THERE WERE ALSO NO SIGNS OF INTRUSION BY RODENTS OR OTHER ANIMALS. THIS HAPPENED WITH NO WARNING. I'VE ALSO SINCE LEARNED THIS HAD HAPPENED ONLY ONE MONTH BEFORE TO THE PARENTS OF ONE OF OUR CHILDRENS' FRIENDS. THEY ALSO HAD A RAV4, ALTHOUGH NOT THE SAME MODEL YEAR (I BELIEVE IT WAS A 2013). I HAVE ALSO SEEN MANY OTHER REPORTS WHILE RESEARCHING THIS ISSUE. IF THERE IS A DEFECT OR DESIGN FLAW CONTRIBUTING TO THESE FIRES, IT SHOULD BE ADDRESSED QUICKLY!