Ricciardo faces home pressure in Melbourne where the F1 season kicks off on Sunday.
Besides driver safety, F1 has been rocked over the last 12 months by its latest monetary crisis.
Nico Rosberg won five races last year to Lewis Hamilton’s 11 and finished runner-up last season.
Spain’s Fernando Alonso willl be driving for Mclaren while Sebastian Vettel will replace him at Ferrari.
Sixteen year old Jehan Daruvala has signed a one year contract with Fortec in Formula Renault 2.0.
Vettel ended the season without a win after dominating the previous four championships.
The former world champion spent three days at the Italian team’s factory meeting key people and driving a 2012 car.
The race, which ended behind the safety car, was won by the Porsche of Neel Jani.
Veteran Australian motor racing driver Mark Webber was injured in a high-speed crash at the Sao Paulo event.
Mattiacci lasted only seven months on the job after being hired in April to replace S Domenicali, who resigned.
With 33 career wins, Hamilton has little to prove. Yet he feels he did silence some doubters this year.
The German’s switch from Red Bull for next season was announced minutes after Alonso’s departure was confirmed.
Michael Schumacher is paralysed and has problems with his memory and speech, revealed a close friend.
The two collided on track in Belgium, Rosberg went on to finish second while Hamilton had to retire.
F1 boss Bernie said that they were too late for 2015 but are working for 2016 race in India.