I was at the race in Melbourne, it was hot, cold, and wet, but not all at once.
The McLarens were dogs, why don't they get old man Dyson to sort out the aero? He'd do a better job!
And that front suspension is too stiff. The only suspension there at the moment is from the tyre sidewalls. Allow it to move a little, makes the kerbs and rumble-strips easier. I saw the rear suspension on the rear of Jenson's car at practice in Malaysia. Could that be too soft and the front too hard?? Take a look at the Lotus and others. A change in these area's could make overall set-up easier.
Only thing I didn't like in Melbourne was the loud booing for Vettel on the podium. That sort of thing should be saved for anything outrageous and maybe the soccer crowds.