After a hugely successful sports car career, Brendon returned to Red Bull's F1 family, making his Formula 1 debut with Toro Rosso at the 2017 United States Grand Prix.
Brendon has played an important role in the development of our partnership with Honda and his experience and feedback has proved highly beneficial. We wish Brendon all the best for the future.
Scuderia Toro Rosso Team Principal, Franz Tost, said:
"We would like to thank Brendon for his hard work with the team. It was not an easy task to move from sports cars to Formula 1, especially at short notice. His consistency over the final four races of 2017 earned him a 2018 race seat and, while ultimately we were not able to continue into 2019, he has been a key part of the team and aided the development of the Honda powertrain. We wish him all the best in his future endeavours."