Channel with reinforcing insert of a motor vehicle

A reinforcing insert assembly for a channel of a motor vehicle, said reinforcing insert comprising a long extruded section element made of a light alloy with a front joining element, a center joining element and a rear joining element, which reinforcing insert may be inserted into the channel and the joining elements may be connected to a plurality of adjacent body parts of the motor vehicle;

• wherein the reinforcing insert is a component extending over an entire length of the channel;
• the reinforcing insert joining elements once installed, are positioned above the long extruded section element;
• the front, the center, and the rear joining elements may be respectively connected to an A post, B-post, and a c post of the motor vehicle body by screw connections;
• and
• the front, center, and rear joining elements are made of light alloy castings and are connected to the long extruded section element by one of welding and adhesion.