[Zeth]

Yes, its possible using SetTimerEx.

PHP код:

vehOnPlayerDisconnect(playerid, reason) { 
    #pragma unused reason 
    DestroyProgressBar(Bar:GetPVarInt(playerid,"FuelBar")); 
    TextDrawDestroy(Text:GetPVarInt(playerid, "SpeedDraw")); 
    TextDrawDestroy(Text:GetPVarInt(playerid, "VehDraw")); 
    TextDrawDestroy(Text:GetPVarInt(playerid, "VehMileDraw")); 
     
    new lcar = -1; 
    if(IsPlayerInAnyVehicle(playerid)) { 
        new carid = GetPlayerVehicleID(playerid); 
        new c = -1; 
        new index = -1; 
        if(GetPlayerState(playerid) == PLAYER_STATE_DRIVER) { 
            while((c = findPlayerCar(playerid, ++index)) != -1) { 
                if(c == carid) { 
                    lcar = index; 
                    break; 
                } 
            } 
        } 
    } 
    format(query, sizeof(query), "UPDATE `characters` SET `lastcar` = %d WHERE `id` = %d",lcar,GetPVarInt(playerid, "CharID")); 
    mysql_function_query(g_mysql_handle, query, true, "EmptyCallback", ""); 
   SetTimerEx("DestroyPlayerVehicles", 3600000, false, "i", playerid);
} 


PHP код:

forward DestroyPlayerVehicles(playerid);
public DestroyPlayerVehicles(playerid)
{
for(new i=0;i<sizeof(VehicleInfo);i++) { 
        if(VehicleInfo[i][EVOwner] == playerid && VehicleInfo[i][EVType] == EVehicleType_Owned) { 
            VehicleInfo[i][EVKeyDupe] == 0; 
            saveVehicle(i); 
            VehicleInfo[i][EVType] = EVehicleType_Uninit; 
            clearTrunk(i); 
            DestroyVehicleToys(i, 0); 
            DestroyVehicle(i); 
        } 
    } 
    if(GetPVarType(playerid, "JobCar") != PLAYER_VARTYPE_NONE) { 
        new jobcar = GetPVarInt(playerid, "JobCar"); 
        DestroyVehicle(jobcar); 
    } 
    DestroyAllRentCars(playerid); 
return 1;
} 


Untested!