At our university they have a Tata Nano on display; the cheapest car you can buy.
It's developed for the Indian market, and my Indian colleagues were very enthousiastic about it. And rightly so: this could be the 2CV of the 21st century. It has everything a car needs: space, lots of windows, a nippy engine, and a steering wheel.
Here is a nice review of it. Due to some safety issues it is not out in the West yet but I think if it ever will be it will be a smash hit. I want one
.