Over the winter there has been a lot of focus on the introduction of the standard ECU, and the banning of driver aids that comes with it. That's sure to be an ongoing subject for discussion in Melbourne this weekend, especially at a track where the heavy braking areas will really highlight the loss of engine assistance, and possibly create a little extra drama.
But along with the technical changes there's also a significant package of updates to the Sporting Regulations, which will have a dramatic effect on how the teams approach the weekend. Here are some of the key issues.
One of the most welcome changes to the format is, of course, the end of the unpopular and (un-PC) fuel burning period, via the simple expedient of a rule that forbids refuelling after the start of Q3. Whatever the top 10 guys have in their tanks when they get back to the pits after their qualifying runs is what they will start the race with.