2006-2008 Porsche RS Spyder

Images copyright Michael J. Fuller
Text copyright Michael J. Fuller

Sebring 2006The 2006 rear wing was constant section.
Petit Le Mans 2007The updated 2007 car's rear wing now has an anhedral shape - the outboard ends are lower than the center section in recognition of the differing flow fields respective areas of the rear wing are encountering.  In addition, the endplates are longer in depth/height and extend above the wing more so than in 2006.
Petit Le Mans 2007Spied at Petit Le Mans 2007 and recalling the apparent cooling issues the RS Spyder's dealt with in 2006 (below), this vertical gurney is located running up the inboard face of the radiator inlets. 
Sebring 2006In 2006 we speculated that the RS Spyder appeared to have some sort of cooling issue as the radiator inlet ducts on both cars had outboard blanking panels and rather large vortex generators mounted inboard just inside the leading edge of the duct.  It seemed more than likely to be a boundary layer issue within the duct that caused an uneven pressure drop across the radiator.  In this case the blanking panel helps redirect the airflow across the VGs which in turn energize the airflow as well as moving it from outboard to inboard within the duct attempting to revitalize the dead area of the radiator.  While never able to get to the bottom of this issue, it was worth noting in the press material for the '07 update this indication: 

"...the thermodynamic qualities of the RS Spyder have also been optimised by, for example, redesigning the air ducts leading into and out of the radiators."

Sebring 2007The fixed rear body gurney is variable height and is taller along car centerline.
Sebring 2007The mandatory rear structure is nicely integrated into the rear bodywork.  Lola's interpretation contrasts with the Porsche in that the upper corner has a large radius rather than the sharp corner seen here.
Petit Le Mans 2008Vertical gurney on the trailing edge of the rear bodywork.  Both Penske and Dyson cars had similar (Petit '08).

ęCopyright 2008, Michael J. Fuller