Where did the red cars go?

http://www.youtube.com/watch?v=--oWwuzIutM

Where did the red cars go?

Los Angeles once had red cars
They tooled around LA everyday
They ran on electricity
From the north to south bay

They carried people from home
To places of fun and games
They carried people to work
From their towns of many names

These red cars ran on tracks
The tracks ran all over LA
They were great fun to ride
Because you could enjoy the day

Life was really great
The sky was blue
The air you could even breathe
And everyone loved it too

Life was good in LA
It was fun to live in such a town
People came from all over
To live and love and be a clown

The red cars one day vanished
The sky turned blue to brown
Gone like the sun had vanished
The reds cars could not be found