Shitzu is a vehicle manufacturer and electronics company that appears in GTA 6.
The Japanese brand was first mentioned in pedestrian dialogue in GTA: San Andreas, though Shitzu would only officially appear in-game in GTA 4, before returning in Chinatown Wars, GTA 5, and GTA Online.
In GTA 6, a billboard advertisement for the Shitzu 
Although no Shitzu-brand goods have been spotted in-game so far, the company is also known to produce electronics such as air conditioning units and more.
The company's name is a reference to the Chinese dog breed Shih Tzu, combined with the correct spelling of the word 'Shit." The Shitzu logo also resembles a pile of feces, which is another in-your-face example of Rockstar's toilet humor.
Shitzu appears to be a conglomerate of several Japanese brands, including the likes of Fujitsu, Suzuki, Honda, and Kawasaki.
