The two Toro Rosso cars ran with new spec power units yesterday, but Honda have reverted the changes for the remaining sessions this weekend. Tanabe-san explains in a tweet how he felt the performance was promising but more work was needed. Pierre Gasly and Brendon Hartley finished 8th and 16th in FP2.
"...Although the performance was encouraging, there's still some work to do..."
We'll be running the previous spec Power Unit for the rest of this weekend, as Tanabe-san explains below 🗣️👇
#RussianGP 🇷🇺 #F1