Can't access to config->item from routes.php

You can try to define a variable called CAR_CONFIG and load it in your routes like this:

create file car_config:

PHP Code:

$car_config = array(
'route_car' => 'test'
);
//Add whatever data you want to the array and at the end of the file just add:
define('CAR_CONFIG', $car_config) 


In your routes.php file:

PHP Code:

#include the file
require_once APPPATH.'config/car_config.php';

//Use the variable
$route[CAR_CONFIG['route_car']] = //path to your controller here... 


That should normally work i think