Qualifying format revised due to Caterham, Marussia absence

Now, instead of the slowest six cars being eliminated from Q1 with six more following in Q2, the stewards have decided that the slowest four cars will exit in Q1, followed by another four in Q2. The top ten Q3 shootout will remain the same.

Caterham and Marussia are both missing the race in Austin as they seek solutions to their current financial issues.