Toyota has developed production lines that can manufacture multiple models more efficiently amid diversifying demand and shortened delivery times in the world's automotive markets. The Global Body Line (GBL) is an example of these efforts.

Toyota has been introducing its groundbreaking body-welding line, GBL, at plants in Japan and overseas since 1996. As a result, GBL is now the mainstay body-welding line in operations worldwide. Typically, between 4,000 and 5,000 spot welds and a variety of processes are needed to assemble the body of a car from roughly 300 stamped parts. At this stage, accuracy is critical. Because a car's body is critical to vehicle design, riding comfort, and driving performance, welding processes must have assembly accuracy within one millimeter of product drawings. To achieve the required accuracy in body assembly, devices called jigs hold stamped parts in position to be welded together. GBL significantly improves production efficiency through an innovative jig mechanism. Not only that, GBL adapts easily to large or small production volumes.

GBL's predecessor, the Flexible Body Line system, positioned jigs on the outside of the car body and circulated jig pallets. As a result, a production line with a monthly output of 20,000 vehicles needed 50 jigs and jig conveyors. GBL, on the other hand, innovatively positions jigs on the inside of the car body and only requires one jig, drastically reducing capital investment. Another major advantage of GBL is that we can introduce it at plants with small production volumes. GBL enables easy access for welding from the outside by placing the jig inside the car body. This radically improves the workability of the manual welding process and parts setting that are used by some smaller plants.

Toyota uses DELMIA in their Robotics and Body in White planning domain and attached link here would give you a good overview and summary of application of Digital tools at TMC.

http://www.toyotageorgetown.com/gbl.asp

Of all the different locations WW, you can find in the map below all the factories in which this GBL has been deployed.