DRIVING TO FROM AUSTIN TO HOUSTON ON 290 EAST ON 9/15/2019 AT AROUND 12:00 NOON. I WAS GOING AROUND 70 MILES PER HOUR AND I HEARD A LOUD POP FROM THE ENGINE AND I SAW WHITE SMOKING COMING FROM THE HOOD AND UNDERNEATH THE CAR. I IMMEDIATELY PULLED OVER AND OPEN THE FRONT HOOD. THE ENGINE WAS ON FIRE AT THE BOTTOM, I ACTUALLY SAW FLAMES. THE ENGINE WAS TURN OFF AND I GOT AWAY FROM THE CARE AND IT DID STOP SMOKING. HAD CAR TOWED BACK TO AUSTIN AND IT WAS TOWED TO DEALER WERE CARE WAS PURCHASED.