I was driving with traffic in a 35 mph zone on a moderately busy street. I got the alert to brake and did so immediately. I collided with the Jeep in front of me. The airbags did not deploy. The front hood of the car tented and a fire immediately broke out under the hood. When a policeman arrived he attempted unsuccessfully to put out the fire with a fire extinguisher. The fire was eventually extinguished when the fire department arrived. The car was towed away. The insurance adjuster said the car was totaled.