Yep.
Saw one today. Everybody was trying to put it out with water.
KIA crossover SUV I think.
Fire Department took care of it. Nasty smell.
5.56mm
About a year ago we came across a car fire, we used a 60 pound Purple K and two 20 pound ABC extinguishers to keep the fire in check until FD arrived.
The heat kept reigniting the fuel and melted plastic.