There is no difference, but the name is different.

Originally, LEXUS had no official access to the China market and no Chinese name. For convenience, Hong Kong people named LEXUS in Chinese, but it was not registered with any government organization, but it was widely spread and applied. It can be said that it is a folk name. Lexus was a Chinese name registered in China after Lexus officially entered the China market with an official background.

In fact, both refer to a brand, that is, the difference between right and wrong. Many people think that LEXUS is a foreign name and Lexus is a China name, but they only look up the status of Chinese in the world. Foreign countries only know English Lexus, but China can't use English names for a long time, so the Chinese name of Lexus appears. Lexus is actually used now, but it won't be used officially.

Extended information:

Lexus was first introduced in North America, because the pronunciation of "Lexus" is similar to the word "Luxury" in English, which reminds people of the impression that the car is a luxury car. Lexus automobile trademark adopts the capital letter "L" of the car name "Lexus", and the outside of the "L" is surrounded by an ellipse. The ellipse represents the earth, indicating that Lexus cars are all over the world.

Reference: Lexus _ Baidu Encyclopedia