@fer-no65 – The original Deltawing was powered (and sponsored) by Nissan, but it was not a Nissan design/car. Fastforward, Nissan is now producing their own deltawing style car (ZEOD RC), using patents and designs it “illegally borrowed” from the original Deltawing project.
It’s a bit more complex than that though. The DeltaWing and the ZEOD are both designs produced by Ben Bowlby. It was his concept from the outset. The thing is, he came up with the concept while under contract for Ganassi Racing, and the terms of his contract basically gave Ganassi IP rights over anything he designed during his tenure. He’s not stolen anything, in reality, he’s simply taken his own idea and developed it with Nissan. It’s just one of those annoying situations where a legal contract means that he’s not the legal owner of ideas and concepts which exist within his own brain.