Cd is the new HP again... well maybe not, but a while ago noone cared even what a car's Cd was, now the numbers are bragged about again.
BMW Vision EfficientDynamics Concept
what's mainly interesting in this car for me is that it's roughly a 4 door sedan shape, and that it's got good aero, no mather what will power the car of the future, good aero will always improve FE.
although the back looks as impractical as it is beautifull in a sculpture sort of way, the rest of the flowing lines, and the shape between the wheels could easily be adopted by the next generation of BMW sedans.
anyway, it's good to see some carmakers are actively looking for ways to improve a cars Cd ... the 0.3 barier has been beaten a long time ago, so not the race for a sub 0.2Cd can begin!