Grab a fire-proof blanket and try to wrap it up and drag it outside and let it burn itself out I guess. Oh and hope that it doesn't explode too much while you're dragging it :D

Or, if you rent and have household insurance: call the fire department and prepare to write an insurance claim, preferable while looking up if a vehicle inside a residence is even covered.

Grab a fire-proof blanket and try to wrap it up and drag it outside and let it burn itself out I guess. Oh and hope that it doesn't explode too much while you're dragging it :D