Fyidriving.com has noticed a growing trend by automotive designers to install what amounts to shutters directly behind the grilles of some cars. They deploy at highway speeds to make vehicles more aerodynamic and thus save fuel. He would have thought that, given the collective wisdom and all that drawin’ and sketchin’ they did at school, they would have figured this out long ago. It must have been revealed in numerous wind-tunnel tests and computer simulations that having air flow through a front opening to become trapped within the engine bay, like a parachute, was not a good thing. The shutters by themselves likely don’t save a heck of a lot of gas, but every little bit helps these days. Makes Fyidriving.com wonder what other obvious fuel-saving solutions have been overlooked.