This is the 6664th most frequent Russian word.
mitsubishi
"Mitsubishi" is not a Russian word; it is a Japanese brand name meaning "three diamonds."
In this sentence, 'Mitsubishi' is used as a proper noun referring to the brand of a car.
Я купил новый Mitsubishi и очень доволен ним.
I bought a new Mitsubishi and I'm very satisfied with it.
Here, 'Mitsubishi' is used to denote the Mitsubishi company, suggesting a corporate entity.
Компания Mitsubishi известна своими инновациями.
The company Mitsubishi is known for its innovations.
In this instance, 'Mitsubishi' likely refers to a product by the brand, indicating a consideration phase in the purchasing decision.