I think considering Logitech's dropped support for them, it's difficult to figure out what they can do, who to pay what, and what needs to be done (driver development).
I've got a Driving Force Pro and definitely want support for it as well, though it may be a while before I have a second PS4, which is basically necessary to be able to play this somewhere where I can comfortably use a wheel. So I do hope for really great controller support, which should at the very least include a lot of customisation options for the tilt features in the PS4 (with at the very, very least support for using it to look into turns, but I would also like it for using it as a virtual racing wheel - worked very well with Motorstorm 2 and would love to try it with a more serious racer).
Hope they get the tracks right - when I tried the closed beta - admittedly ages ago - their track surface detail was terrible/non-existent and trackside detail was disappointing.
Some of the lighting is really nice in that video. And yeah, it's supposed to be PS4. We'll see what the final game looks like, but certainly it should be possible to look this good on new-gen, considering how good games could already look on old-gen).
EDIT: according to the comments:
pCARS trailer for PS4, made and edited on PC, run on PC.
All footage was from PC, don't expect the same on consoles.
But we'll see. The show often becomes more interesting once the doors open and developers get to do their proper presentations (and the press is allowed to show the stuff they recorded three weeks ago at the press-pre-events)