When Mercedes-Benz introduced its SLR McLaren 722, there was a bit of confusion about the special-edition’s name. Many believed the car would offer a fire-breathing, 722 hp supercharged V8, but it doesn’t (it makes 650 hp). Some believed that “722″ meant there would be 722 of the cars made … but that was wrong, too. In the end, the 722 badge actually referred to 7:22AM – the starting time of Sterling Moss’ epic 1955 Mille Miglia run in a then-new Mercedes SLR.

The guys at RENNtech were not impressed by the naming convention, nor by the 650hp that the SLR was producing. In April of last year, they introduced a sport package kit along with a custom tuning chip that would bring the SLR 722 to 722hp. A year later, they are introducing another package, but this time, they have taken the performance to a whole new level – a 740hp level.