Though the Porsche 911 kinda, sorta, maybe looks like its original progenitor (okay it looks exactly the same), it doesn't function exactly the same. Part of the reason why Porsche 911s are no longer free-wheeling death machines is because of their aerodynamics, and the way they all move about these days.

For much of its early history, the Porsche 911 was stuck with a "whale tail" for aerodynamic control. It doesn't move much, and when you're not trying to speed your way through a corner it can end up hurting your fuel efficiency, which Porsche has been told is important these days.

Active aerodynamics, where your spoilers and wings can move depending on their most pressing need, is a big help towards not only efficiency, but also drag and downforce. With moving spoilers you can alternatively have the benefits of added downforce with none of the drawbacks when the extra control isn't necessary. Active aerodynamics are such a boon, in fact, that moveable aerodynamics have been strictly regulated in some form or another since its advent in the 1970s.

Like many Porsches for the past 25 years, the 2014 Porsche 911 Turbo features active aerodynamics, and Porsche took the time to make this neat little video explaining how the whole thing works.

It also helps that this video was apparently narrated by William Shatner, circa 1978.