This video describes the retrofitting process for a swiveling trailer coupling in a Mercedes-Benz C-Class Model W204. The process involves removing and replacing parts in the trunk and engine compartment, including the trim panel, anchoring lugs, bumper, electric fan, and wiring harnesses. The installation process requires mechanical skills, attention to detail, and a good understanding of automotive electrical systems. The target audience for this video would likely be mechanics or car enthusiasts who are familiar with vehicle maintenance and retrofitting.