Formula 1 is to kick back into life this week following the traditional winter break.

It's been two months since Lewis Hamilton beat Nico Rosberg to the 2014 title and this week the duo, along with their rivals, will begin the serious work of preparing for the upcoming campaign.

The majority of the nine committed teams are set to reveal their 2015 cars prior to the start of pre-season testing, which commences on Sunday morning at Jerez, in southern Spain, where each squad is permitted to field a single car for the four day test.

While Force India has revealed its 2015 livery and front end section - and confirmed that it will use its 2014 car at the first test - and Williams has released computerised images of its FW37, all eyes will be on McLaren on Thursday when the Woking-based team unveils its Honda-powered MP4-30.

McLaren has not won a race since the end of 2012 and Honda is returning to the sport after a six-year absence, while Fernando Alonso has re-joined the squad with which he spent a challenging 2007 campaign. The Spaniard, who partners fellow world champion Jenson Button at the team, will give the MP4-30 its public debut at Jerez on Sunday.

McLaren's unveiling will take place online, as will perennial rivals Ferrari, with the Italian marque also keen to embark on a revival after a difficult 2014 season.

Ferrari's as-yet-unnamed 2015 model will be presented to the world on Friday, with new recruit Sebastian Vettel to pilot the car for the first time on Sunday.

As in 2014, Toro Rosso will unveil its new car, the Renault-powered STR10, on Saturday evening in the pit lane at Jerez, with rookie drivers Max Verstappen and Carlos Sainz set to take the wraps from the car.

It will be an early start for many on Sunday with defending World Champions Mercedes revealing its W06 Hybrid to the world in the pit lane at Jerez, prior to the green light being shown for testing at 9am local time (8am GMT).

The remaining three teams - Red Bull, Lotus and Sauber - have yet to reveal details of when their 2015 cars will be presented to the public, but the Swiss team has confirmed it will be present at the test.