factory underbelly on Infiniti M56x
 

Stock under body, looking from the rear end.
minimalist approach.
http://img.photobucket.com/albums/10...cks/null-7.jpg

Is that steering-rack-lookalike thing a 4 wheel steer system??

not too far from the underbelly of the 05-06 GTO's
0.31 Drag coefficient in a touring car

you saw that too??!!!!!

I just saw this pic over on FRESHALLOY.COM (where I moderate) and thought the exact same question?!!!!

So I posted up and asked....have not heard back yet.

I just looked up the M56x
it has a coefficient of drag of just 0.27 Cd

and it does have "4-Wheel Active Steer"

Quote Originally Posted by SmoovC View Post

I noticed that too; it was in the M56 Stillen Exhaust thread, IIRC. I believe it is for the 4-Wheel Active Steer? I don't feel like crawling under mine to look....
You nailed it. That's exactly what it is. :thumbup:

That's a pretty decent Cd!!!

Impressive!!! Notice the H pipe in the exhaust!!! Wow, lots of engineering in that beast. :thumbup: