F1 takes priority for him as that 's his primary series , but he tries to do every F1 and IndyCar race that he can .
Diffey 's deal with NBCSN , for example , includes F1 , IndyCar and the Olympics .
F1 takes priority for Diffey as that 's Diffey 's primary series , but he tries to do every F1 and IndyCar race that he can .
Diffey 's deal with NBCSN , for example , includes F1 , IndyCar and the Olympics .