[marrcko]

well the easiest way i think would be:

pawn Код:

new bool:IsDriver[MAX_PLAYERS] = false;

pawn Код:

public OnPlayerStateChange(playerid, newstate, oldstate)
  {
  if(newstate==PLAYER_STATE_DRIVER) 
    { 
    IsDriver[playerid]=true;
    }
  }

pawn Код:

public OnPlayerExitVehicle(playerid, vehicleid)
  {
  if(IsDriver)
    {
    new currentveh;
    currentveh = GetPlayerVehicleID(playerid);
    DestroyVehicle(currentveh);
    IsDriver[playerid]=false;
    TextDrawShowForPlayer(playerid,Cardestroyed);
    SetTimerEx("cardestroyedhide", 5000, 0, "i", playerid);
    }
}

OR SMTH LIKE THAT!!!!

Edit: yes even like @ post above