I'm going to begin by saying that I Am Not A Patent Lawyer. But to anyone with, let's just say, "functioning eyes," it's easy to see that the Nissan Zeod RC's design looks to be a copy of the original Deltawing. And the original Deltawing team is really, really pissed off about that. Still.
In case you haven't been following this whole mess, this is the second ad revolving around the Deltawing controversy. Nissan supplied the engine, and paid a bunch of money for the naming rights to the original Deltawing back in 2012. The rest of the Deltawing (i.e., the car) was built by Dan Gurney's All American Racers team, financed by Chip Ganassi, and developed by Don Panoz and his crew.