Americanlemans.com reports that Penske will be campaigning two second generation RS Spyders in ALMS ... and will not race in any other series, including LeMans.
A bit late, but was thinking about this the other day. Is that possibly because Porsche doesn't want to go back to LeMans with a prototype unless they can compete for the overall win? None of this in-class stuff, but first overall?
Just thinking out loud...