To dream of a streetcar represents a direction in life that is certain and irreversible. A situation where there is no turning around or an an experience that happens whether you like it or not. An unstoppable recurring experience that you can confidently rely on.
Positively, a streetcar may reflect confidence in business or employment with regular paychecks. Negatively, a streetcar may reflect feelings about aging and birthdays leading to death.
To dream of a streetcar on fire may reflect feelings about fearing losing something that you have always confidently relied on. Fearing losing your regular paycheck or income source.
Example: A old man had a recurring dream of a streetcar that would open it's doors and have the driver tell him it wasn't his train yet. In real life he was an elderly man that spent a lot of time thinking about when he was going to die. The streetcar may have reflected his feelings about doctor's visits always having the potential to reveal to him that his old age had finally caught up with him and that he should prepare to accept his aging becoming an unstoppable journey towards death. He was always surprises that the doctor would tell him that we has perfectly healthy and wasn't dying yet.
*Please See San Francisco Streetcar