Michael, have to say I'm not sure I really like the look of that. While I understand it is function over form or aesthetics, it does look a little odd on the Aero.
What I will also say is the Aero cabin actually seems to keep pretty warm and I don't notice a lot of wind buffeting (and I'm 6'3). Even my wife found it comfortable with the roof down when we did the pub run in November and she's the first to feel the cold.
Having already seen an Aero with it fitted, I'm afraid that I have to agree with you. To me, they look fine on Benz's and similar, but don't look right on traditional English sportscars like an Aero.
In any case, we haven't found the back-draught too intrusive even in very cold-weather. <img src="/forums/images/graemlins/grin.gif" alt="" />