Why does HRT have Chelsea's team logo on his body?

The contract was not signed until this year. This is a pioneering cooperative relationship. This agreement links the two most important sports teams in the world. These two successful teams in the world have a long history, and their performances are full of passion, bringing unique enjoyment and experience to fans and fans. Sauber will print the logo of Chelsea on the car body to promote the team, and the team will also promote Sauber in other ways to improve business opportunities.