On the other hand - Cape Town's rapid buss transit system is an absolute and booming success. It's reliable, relatively quick, and costs a tiny fraction of what the same trip in a car costs - and is generally faster than the car anyway.
Anybody who lives on a route tries to use it - the only shortcoming it has is not covering enough suburbs yet. You can't use it from the Southern Suburbs, you can't use it from the Eastern Suburbs. It's only available from the Northern ones really.

But when I lived in the Northern Suburbs and worked in Town I used it everyday. I found myself taking joyrides in my car on weekends just so it wouldn't destroy the engine and tyres from otherwise never moving.
I got to work in half the time driving would take, at not more than 15% of the cost, without the stress of sitting in traffic. And I could read a book or watch a movie on the way. 

That's how rapid transit SHOULD be done, and CAN be done. If they extend it to where I live now, I WILL use it again,