toribio

//no topo:
new veiculo;

//no OnGameModeInit:
veiculo = CreateVehicle(modelid, x, y, z, angle, cor1, cor2, 60000);

//...:
public OnPlayerStateChange(playerid, newstate, oldstate)
{
    new pname[24];
    GetPlayerName(playerid, pname, sizeof pname);
    if(newstate == PLAYER_STATE_DRIVER &&
       strcmp(pname, "Nome_do_Jogador", false) != 0
       GetPlayerVehicleID(playerid) == veiculo)
    {
        RemovePlayerFromVehicle(playerid);
    }
    return 1;
}