Car On Fire (2013).
Directed By KomandantLuskene who sez:
A parked car went on fire [Ashbourne, Co Meath], then seconds after the fire brigade arrived the handbrake finally went, and it rolls down the road nearly hitting a Garda car and the bus I was on. Fair play to the firemen running in front of it to stop it, I could feel the heat from inside the bus.
(Thanks Andy Saul)