A little birdie told me that TEGA had recently done a side by side aero test to evaluate the downforce characteristics of both cars. Many expected this to reveal the Ford having a deficit in "frontal" downforce. This is seperate to the "wind Tunnel" testing of the new BA and Commodore.
Whilst this was done originally, there were issues raised as to the weather conditions not being condusive to conclusive results. Should the data show this discrepancy, TEGA will meet to discuss changes, bearing in mind it has 3 reps from both sides, the data will have to be black and white to justify any change.
I understood a few years ago that as an indicator of parity, the best five laptimes of the best five of each make was averaged and a magical forumla applied to give a number. If that number was greater than a certain level for more than 3 straight races in favour of one make changes would be made. Don't know how right this is but it wouldn't be a bad thing if it was right.
Now, for the gratuitous Holden dig, if Ford wants to achieve true parity, maybe they should give HRT some staff so they can teach them to screw up pitstops, put in dud engines, be inconsistant and teach the drivers to hit each other. (Sorry but I know in a few years you guys will probably be hammering us so I must make hay whilst the sun shines)