Michael Andretti was at the Circuit of the Americas this time last year trying to drum up support for a Formula 1 team. F1 returns to Texas this week after Andretti shockingly walked away from racing and the future of the second American F1 team he fought so hard for is unknown. NASCAR opens the third round of the playoffs full of off-track storylines and IndyCar is just looking for a stable offseason in which owner Roger Penske can deliver on his promise of growth.