More coefficient of drag friendly vehicle

I like retro vehicles but to create the best fuel economy how about creating sexy coefficient of drag vehicle . These vehicle would be sleek and cheat the wind but offer all the conveniences we have grown accustom too. Let’s drop the hood as low as we can but still keep the pedestrian safety requirements relevant. Astatically the shape would be closer to a bullet form and gain as much as 5 to 10 mpg better. Trucks can benefit the most from this aero styling by lowering automatically at highway speeds and deploy many wind cheating features. For Sports car deployable aero features could be both aerodynamic and astestic with wings etc.