This is the 6749th most frequent Russian word.
stellantis
"Stellantis" is not a Russian word; it is the name of a multinational automotive company formed from the merger of Fiat Chrysler Automobiles (FCA) and PSA Group.
Here, 'Stellantis' is used as a proper noun referring to the name of a company.
Компания Stellantis представила свою новую линейку автомобилей.
The Stellantis company presented its new range of cars.
In this sentence, 'Stellantis' denotes the name of a brand featured on a billboard advertisement.
Вчера я видел рекламный щит с логотипом Stellantis.
Yesterday, I saw a billboard with the Stellantis logo.
Here, 'Stellantis' refers to the entity responsible for advancements in green technology.