You post is a little confusig - I am not sure if you meant that it did not need the big wing (which it really does not) or if it did not need a wing at all (like the roadster version that doesn't really need one).

I know that boat tail desgins are flawed with instability at high speed an they need something (yeah our wings probably don't need to go up until we are over 80 or so). When I first showed it to all the car buffs at work their first comment was the flaw in the boat tail design. They thought the porche like solution was pretty smart so that the lines would not be destoryed untill they had to be. I also remember hearing that Audi recalled all of their TT coupes and had to put spoilers on them due to this problem.

-marc