Dude, you hit the spot in an earlier post - lucky (?) there wasn't posts, trees or other traffic. Glad you made it out - hopefully the car is fixable.
I nearly lost it on a roundabout a week last Sat on a fruitless visit to the Red Bull Air Race nr Longleat - George (Hanel) was behind me and saw my unwanted gliding session around an adverse-camber, wet and oily, SMALL roundabout, where thank-the-heavens the ESP helped me out with much juddering of tyres and lack of intervention by untalented me.
As long as (1) I don't want to kill anybody else, and (2) I owe substantial money on this car: I won't be turning the ESP off.
Once I've had it for three years, had Andy Walsh training, and a few more laps of NBR, even then I won't turn ESP off on the roads - only a fool would IMHO - never mind yourself, think of the other people you can hurt. Turn the ESP off on the track, fair game.
Now to wear my flame proof suit!