It was the four-time world champion's second straight win in Melbourne and he followed it up with victory at Bahrain before a resurgent and doggedly consistent Hamilton won 11 of the final 19 races to leave the frustrated German in his wake.
Yet while the Italian constructors are expected to start the season strongly, Vettel admits he has some nerves as he looks to draw level with Hamilton on five world titles.
He added it was not just about "who comes out of the blocks quickest", but who could best develop the auto throughout the long, 21-race season.
"We had some issues with the vehicle to fix".
"In this regard we are more prepared".
Sky Sports F1 is the home of live and exclusive F1 - and new and existing customers in the United Kingdom can now get the channel for just £10 extra a month, our best-ever offer. Our auto seems to work fine, there are no problems at this stage.
"Last year, we had to give it absolutely everything to come out on top", he said ahead of the opening race in Melbourne on Sunday.
"The Formula 1 Rolex Australian Grand Prix is an iconic event on the sporting calendar and we are pleased to showcase premium CHiQ televisions throughout the venue", added David Esler, General Manager - Sales & Marketing of Changhong Electric Australia.
"After a test, you always improve the next day as the auto gets older and older throughout the test", he added.!It wears and then you go away, you analyse where you've been.
Toro Rosso rookie Alex Albon, meanwhile, became the first driver to hit the barriers in the new season when he span out mid-way through the session.
But Vettel admits he has no idea yet whether the new rules will help lead to more wheel-to-wheel racing. Didn't seem to make a difference. The Pole has confessed that he is not a 100% ready for his F1 return, 20% at best, to say the least.
"It's actually 24-years-old and never been resurfaced so if we're going to resurface it let's work with Formula 1 with their simulators and track analysis and see if there are some things that we can evolve". Qualifying is then on Saturday morning at 6am, while Sunday's race begins at 5.10am.