A street car is anything you can drive on the street.
It's up to the owner/driver to decide what level of pain and suffering is tolerable for the occupants of the vehicle. Some people can put up with a whole bunch to "make a statement" or just have fun with it.

I personally have gone soft in my old age. I require power steering and air conditioning in my rides. I'll never again have a "race only" vehicle, because I enjoy simply driving my stuff too much to only trailer it around and pay somebody else to provide me with a place to play with it. That, and I hate waiting in lines.... LOL