As danza said really,
it completely depends on how the car is set up, if its relatively standard the car wont allow you to drive it how a properly sorted fwd car should be driven in the track, but then saying that if its set up properly it would be really nervous to drive fast on a back road blast due to it relying on having temprature in the rear tyres...
I would start off with how you have drawn it in your pic, folowing the basic rule of thumb of brake in a straight line, then build the speed through the corner.
if you want to go past this stage you will need to throw that rule of thumb out the window, then it becomes a case of how much confidence you have to be able to slide the car! As tony said, You then start braking deeper into the corners and using the power to control the degree of slide you have going through the corner, if its done right you should have very little slide but enough to be able to keep the throttle on without worrying about any sort of understeer... so its more of a fast in fast out technique! you have to be very smooth with this tho not using much steering input at all!
The beauty of fwd is that you can have a massive moment and still get away with it, but just remember to take the opposite lock off just as quick as you put it on... otherwise you will be going back the opposite way haha