2011 Mini Cooper is also tiny

If you are looking for a used mini cooper to be your go cart I would refer you to the first generation, and if you are looking to drive your family around comfortably and economically than i would suggest the second generation. If you like to know more about Mini coopers I have a blog full of information that you need.
Mini cooper blog

The Mini Cooper is also tiny, which makes it one of the most maneuverable and zippy cars in the class. It should get even higher performance ratings from the automotive press than the 2010 model because its engines have more horsepower and fuel economy has increased by a few miles per gallon.

2011 Mini Cooper is also tiny