Once upon a time, road course races (Infineon and Watkins Glen) were normally two of the most boring races on the circuit. Beating and banging was kept to a minimum, and very few cars returned to the garage with damage.
As the great Bob Dylan once sang, "The times, they are a-changin'."
Kurt Busch dominated Sunday's Toyota/Save Mart 350 at Sonoma, leading 76 of 110 laps in a winning performance.
His car was spic-and-span clean when it reached Victory Lane; as for almost everyone else, their cars appeared to have survived a demolition derby.
So, what did we learn at Sonoma this weekend? Here are seven lessons that we should have learned.