If you never understood what the hell is heel-and-toe downshifting, don’t worry because you don’t need to anymore. With the introduction of the new 911 Carrera 4, Porsche is offering a new synchronized downshift rev-matching system that simulates heel-toe by automatically blipping the throttle for the engine to match the lower gear’s speed.

This systems is available as part of the optional Sport Chrono package, and will become available for all seven-speed manual 991s in 2013. Manual Boxster and Cayman models will also get it in their new versions.

This system is of course nothing new, as Nissan has been offering it with the Nissan 370 sports car for a few years now. Porsche recognizes that and says their system works just like Nissan’s. But they might be lying, because while Nissan let you use the Synchro Rev Match system all the time, Porsche’s rev thingy, apparently, only engages in the full attack Sport Plus mode.

via C&D