i can't believe people here advocate the idea of oversteer is much easier to correct than understeer, for most of u guys track kaki's, of course no problem lah, but i have 19year old lil brother who just got his driving license, he also surf zth from time to time, if he read & believe what been said here without having similar abilities & experience, he might get himself in trouble.
for mere mortal & ordinary driver like myself & most driver on the road who drive normal car, understeer is much easier to correct than oversteer,
under/oversteer happen when the tyre cannot withstand lateral or combination between longitudinal(acc/braking) & lateral load(turning force) that act on them,
during understeer when the combination of both long.& lateral load are more than what the tyre can handle, the tyre will skid, in this case, it's the front tyre, if we reduce either load let say, longitudinal load by releasing the throtlle, the tyre will regain it grip & we will regain back control, even if understeer still happen eventhou our foot is off throttle, the understeer process itself will reduce vehicle speed(long.force) & grip will be restore
during oversteer, similar thing that caused the front tyre to lose grip now happen to rear tyre, let say we turn right for right corner, rear end start sliding & steering wheel want to spin itself to left becuz front tyre still gripping the road, now, if we reduce the long. force by releasing the throttle, snap oversteer can happen becuz after the tyre regain back it grip the steering is now facing wrong direction which is left, or the weight now shift to the front & rear tyre that used to have contact patchthe size of palm now have contact patch the size of finger thumb(for example), the car will end up spinning 360° because the tyre now have less grip & continue sliding & driver unable to stop steering wheel spinning left fast enough.
i use releasing throtle as an example for correction method becuz it is the first thing ordinary driver will do once understeer/oversteer happen