Righto, what have members done regarding aero on their AW11's? Anything? I've just got a boot drilled for the 'Plumley' modified spoiler, I'll attack the spoiler itself next (as well as re-shaping the spoiler slightly and adding a gurney flap). I also have my bonnet marked out for drop-vents, decided to go with a split-vent design similar to this:
 

 
Any other contribution? There's a bit of information out there, however most of it is incorrect or based-entirely on guesswork 

robyob found at phillip island that the front end get's light at 200-250kph, so a front splitter would be an idea. The reverse ducting in the bonnet will only be beneficial if you remove a section of the panel behind the radiator, and seal it up a bit. The mr2 is blessed with a fairly flat floor, so wing mods and something to balance the front ie a splitter and/or the duct should make for a balanced aero package. If you want to read up on aero, and get ideas, have a read through mulsanne's corner. Search for it on google.

Definitely doing some cutting of the panel behind the radiator, actually going to box it up to mount flush and seal with the bonnet. 
Thanks for the link, reading now. 

no worries. A lot of it is very technical etc, but a lot of the basic principles can applied. I remember someone doing something similar with bonnet venting, trav, knightrous or robyob might remember where it is, it's either in the old forum or off mr2oc, but they cut all the non structual part out and had an alloy duct in where the wheel well was and then it sealed to the bonnet. You could try extending a flat panel under the engine bay, with a diffuser at the rear, but thermal management could be an issue, and the exhaust could interfere with a diffuser.