for those who can remember

[Mark J. Besso]

Dan,

The wheel covers hid vanes attached to their inner surface.  Those vanes 
would extract air through the wheels to cool the brakes and create a 
low-pressure area beneath the vehicle (free downforce).  The extracted 
air needed to vent between the rim and the wheel cover so that's why 
they stick out further than the tire.

~Mark



Dan DiBiase wrote:
> ________________________________
> From: Dave <dave.eaton at clear.net.nz>
> To: quattro at audifans.com
> Sent: Thursday, May 28, 2009 8:15:48 PM
> Subject: for those who can remember 
>
> the old days...
>
> http://speedhunters.com/archive/2009/05/26/retrospective-gt-gt-quattro-firep
> ower-the-imsa-audi-90-gto.aspx
>
> '03 rs6
> '04 allroad tdi
> _______________________________________________
>
> Great article for sure. I am curious about the wheels - why do the rims stick out beyond the tire? Never seen that
> before.
>
>  Dan D
> '04 A4 1.8Tq MT-6
> Central NJ USA
> _______________________________________________
>