Nissan is an automaker that uses NissanUSA.com for its website here in the US. The reason it uses an off-brand domain name is because it lost a very long legal battle to try and wrest control of Nissan.com. That domain name had long been owned by a man named Uzi Nissan, who had it for his business. You can read about the legal battle on Wikipedia. Mr. Nissan passed away in 2022.
It looks like Nissan is now trying to take control of another Nissan domain name. This time, the company has its sights set on Nissan.ai, and it is using the UDRP process. As you know, .AI is the ccTLD extension for the country of Anguilla, and it has become popular with the advancements in artificial intelligence and the venture funding devoted to AI-related companies.