Changes to session one and two:
Drivers may now complete the lap they are on when the time reaches zero. Previously, this was dis-allowed and only completed laps counted. Now, if a driver crosses the start/finish line at 14 minutes and 59 seconds into the session (just before the session ends), he may complete the lap and have it counted towards qualifying.
Changes to session three:
The session has been shortened from 20 minutes to 15 minutes. This change has been made to reduce the amount of ‘fuel-burning’ laps where drivers have been cruising (within 110% of pole time) around just burning off fuel before launching an attack about 8 minutes before the session ends. With a shorter session, we should only see cruising laps for about 5 minutes.