[austin070]

pawn Код:

if(GetPlayerVehicleID(playerid) == 433)
    {
        SetVehicleParamsForPlayer(vehicle, playerid, false, true)
        SendClientMessage(playerid, YELLOW, "You are not qualified to drive this vehicle!");
    }

Try this, but fix the indentations that the samp forum loves messing up. Rather than letting the player enter the vehicle and then get removed from it, this will simply LOCK the vehicle and prevent the player from entering. Make sure this is under OnPlayerEnterVehicle(..)