WHAT
Personally I love roundabouts, theres 3 ways of taking them, nice and calm when theres other road users on them, really quick using a good racing line, or sideways with as much lock as possible.
If you dont feel in control of your car get yourself on a advanced driver training course in your own car where you can learn exactly what your car will do in different conditions and how to react when push it a little
http://www.carlimits.com/