[Jefff]

pawn Код:

// global
new gVehicleOwner[MAX_VEHICLES + 1] = {INVALID_PLAYER_ID, ...};

new vehicleid = CreateVehicle(411,0,0,0,2,-1,-1,3600);
gVehicleOwner[vehicleid] = playerid;

public OnPlayerEnterVehicle(playerid, vehicleid, ispassenger)
{

    if(gVehicleOwner[vehicleid] != INVALID_PLAYER_ID)
        if(gVehicleOwner[vehicleid] != playerid)
        {
            new string[64];
            GetPlayerName(gVehicleOwner[vehicleid], string, MAX_PLAYER_NAME);
            format(string, sizeof(string), "This car is owned by %s", string);
            SendClientMessage(playerid, -1, string);
            ClearAnimations(playerid);
        }

    return 1;
}

and for destroy

Change all DestroyVehicle to DestroyVehicleEx

pawn Код:

DestroyVehicleEx(vehicleid)
{
    if(!(0 < vehicleid < sizeof(gVehicleOwner))) return 0;
    gVehicleOwner[vehicleid] = INVALID_PLAYER_ID;
    return DestroyVehicle(vehicleid);
}