Trust me, crap tyres and a greasy surface work wonders. Not to mention something with a longer wheelbase probably would have been easier to step out.
I remember doing it a couple of times in my Primera GT - was very scary, but just touching the throttle made everything come back into line perfectly. And this was at no more than about 30mph.
I've had it a couple of times in my Fiesta ST, Yokohama tyres and a wet roundabout don't take much effort to kick the back end out, I find that after letting it slide I can catch it with ease by just giving it some throttle and turning into the slide (Exactly like drifting with RWD)
