…/ the air springs in the rear of the limo somehow ruptured, setting off a domino effect that led to the fire. Yusef Mustafa [the owner of a garage that services limousines explains (My edit.)] /…/ " /…/ when one of [the air springs (My edit.)] has a rupture on it, the whole car drops down, basically almost on the tires. So when the car drops down, these parts of the drive line usually it will be hitting on this part right here and that will create a friction and it winds up a lot of heat."
"The car would be jumping like a horse," Mustafa continued. "If there's a load in it, it would be bottoming at the ground, which is I think what happened. It bottomed on the ground and unfortunately, the gas tank is right there. The car with the weight, it bounced down too hard, and ended up hitting the gas tank, which is right at this spot here. It might have hit the gas tank and then you see, when it hits the ground it will create a spark. There's a spark here and there's fuel going down. So it catches fire."