Do you understand the advances in riveting? With panels getting thinner and thinner the self-piercing rivets (SPR) is being superseded by flow form rivets. These are inserted into the existing SPR holes to avoid weakening the panel with a new hole.
Among the types of rivets now on the market are : solid self-piercing rivet fo ruse when joining several thin panels together.; countersunk flow form rivets, which leave a flat surface that allows the rubber covers to be refitted without trouble; huck magna grip/bom which are used on chassis repairs and are one of the strongest cold joining repair methods available; and rivstuds and rivnuts.
These cold joining methods are example of how this whole repair process is significantly expanding and evolving.