Ariel Atom scaffold spoiler

[TonyTony]

I was just randomly browsing the classifieds and came across this. I'm not sure if its an official aftermarket part but it looks a bit odd! :S

His advert links to ebay:

http://cgi.ebay.ca/Ariel_W0QQitemZ190516009667QQca...

[TonyTony]

Mmmm how has this ended up here, i was on GG. :/

[DanB7290]

Certainly doesn't look like the "official" rear wing from Ariel, definitely looks too high. As an engineering student, I'd love to see the maths behind the theory that a wing like that is better.