2017 ecoboost mustang , 31k miles, 17 yr old daughter pulls out of neighborhood going to high school! 1/4 of a mile (4 houses) down she hears a loud boom then car bursts into flames under the hood near firewall or windshield wiper arms. Cause is coolant leaking into the cylinders, which in turn caused the misfires, and engine to catch on fire. Ford has been aware of this issue since 2016.