Windscreen or aero-screens?
Contributed by Felix Klauser: Most sevens come with a standard windscreen that allows such luxuries as wipers and sidescreens. The windscreen and sidescreens protect the occupants from debris thrown up by other cars, bugs, the occasional low-flying bird and the like. However, they do cause turbulence just behind the occupants (leading to unique hair styles) and add a lot of drag. Aero-screens (sometimes called Brooklands screens) are small half moon shaped pieces of tempered glass, one in front of each occupant, that are mounted in place of the windscreen. They drastically reduce turbulence and drag, leading to quicker acceleration and higher top speed. However, they provide virtually no protection from the above-mentioned flying objects and thus goggles or a helmet with eye protection are required. The aero-screens also don’t allow the use of sidescreens or the hood, leaving occupants at the mercy of the elements.