[fiki574]

pawn Код:

command(unimpoundmycar, playerid, params[])
{
    new status[64], string[128];
    format(string, sizeof(string), "%s (Impounded).\n", VehicleNamesNoID[Player[playerid][PlayerCarModel]-399]);
    strcat(status, string);
    format(string, sizeof(string), "%s (Impounded).\n", VehicleNamesNoID[Player[playerid][PlayerCarModel2]-399]);
    strcat(status, string);
    format(string, sizeof(string), "%s (Impounded).\n", VehicleNamesNoID[Player[playerid][PlayerCarModel3]-399]);
    strcat(status, string);
    ShowPlayerDialog(playerid,4589, DIALOG_STYLE_LIST, "Un-impound your car", status, "Select", "Cancel");
    return 1;
}

No need for 3 strings!