The Mercedes SLR McLaren started out as Vision SLR concept, unveiled at the 1999 North American International Car Show. The goal was to showcase what Mercedes had learned from their F1 engine supplier, McLaren. Then, they decided to put the car into production. Between 2003 and 2009, 2,157 cars were made in total. Over the years, a couple of special versions appeared, such as the 722 and Stirling Moss. The YouTube channel Seen through Glass is showing us another one, even more exclusive than the others.