[saiberfun]

pawn Код:

DestroyVehicle(car[playerid]);

but i guess that would only destroy the last created vehicle.
so u need to make new varibales for each playerid like

pawn Код:

new firstone;//ontopofscript
new secondone;//same

pawn Код:

//at creating the vehicle for the first racer
firstone = playerid;
//and the same for the secondracer
secondone = playerid;

then when u destroy the vehicles u do:

pawn Код:

DestroyVehicle(car[firstone]);
DestroyVehicle(car[secondone]);