Ergh, making it taper off at the rear so it is more aerodynamic just makes it look hideous. It is a Range Rover, it isn't designed for speed, but the time it has punched its way through the air it has burn all of the fuel it was ever going to.
No, they have a deceptive shroud on their vehicle (lots do these days), but if you look at the front grille you can see where the RR badge should go and the rear tailgate is pure RRS.