that happened to my friends s2000. he was going on ramp 40+ mph. the on ramp is a hardcore turn that a normal car barely can make it 20mph. the car swirved right hardcore, he got control and oversteered and swirved left. the good news is that the on ramp had 2 lanes, the left was carpool, he barely made it not hitting the curb and the car turned 180 degrees. it was so weird cz then a few seconds later a car passed by us while we were stopped at the other lane facing the wrong direction. car didnt start for about 10 secs cz of the hardcore movements, gas moved on the other side of the pump, took a while for the fuel pump to suck the gas back.
conclusion: he had tire armoralls on(dealer putted it) and he lost the grip off his tires for messing around with it to much.
to prevent any thing like this from happening, listen to ur tires, when they start squealing, ease up on gas and dont oversteer, cz if you do ull lose control