The Mazda 5 was in a minor collision. The vehicle rear-ended another vehicle in stop-and-go traffic. Both vehicles were in motion, approximate speed of the Mazda 5 was 15MPH or less. The front seat airbags deployed. The other vehicle had rear bumper damage but the Mazda 5 immediately had smoke and flames under the hood. Thankfully, all four occupants immediately exited the vehicle to safety. The Mazda 5 quickly burned completely. Police and firefighters came to the scene and everyone agreed that the Mazda 5 fire was not commensurate with the extent of the collision and likely speed of impact. I am concerned there was a major safety defect that caused it to be engulfed in flames.