Just to expand on this, the video refers to the images that Porsche are creating for press releases and PR, of which I think some are done in-house, and some are done by the likes of Staud Studios, and they are largely done in VRed. You can tell the PR shots from Porsche because the licence plate usually starts with “S GO”.
The shots that Porsche use in their catalogues and ads are commissioned by an ad agency, and as Olli says, are done in whatever software the supplier chooses to do them in.
I can tell you for a fact that the location shots in the 911, Macan & Cayenne catalogues, along with the upcoming Boxster and Cayman, were all done in Max and VRay, because I did the CGI for them.
The data comes as Maya files from RTT, but there are no constraints whatsoever over what software you use after that.
Cheers,
John