[[BEP]AcerPilot]

pawn Код:

public OnPlayerStateChange(playerid, newstate, oldstate)
{
    if(newstate == PLAYER_STATE_DRIVER)
    {
        if(GetPlayerScore(playerid) > 50)
        {
            SendClientMessage(playerid,0xAA3333AA,"{76EEC6}Drive {283A90}carefully.");
            return 1;
        }
        else
        {
            RemovePlayerFromVehicle(playerid);
            SendClientMessage(playerid,0xAA3333AA,"{76EEC6}Your Score {551011}is not high enough to drive this {76EEC6}vehicle!");
            return 1;
        }
    }
    return 1;
}

With OnPlayerStateChange you don't need to use a timer, 'cause it will be called only when the player is inside the vehicle, not when he attempts to enter a vehicle.