London - The first Formula 1 race of the year, the 2017 Australian GP, is fast approaching.
With testing complete, teams are eager to get the season underway in Melbourne behind the wheel of their new cars.
Ferrari demonstrated surprising pace during testing in Spain.
Hamilton's new team mate
Lewis Hamilton's bid to regain his F1 title might actually prove harder without Nico Rosberg around. With Rosberg gone, a key factor this season - starting with the Australian Grand Prix (March 26) - will be how three-time champion Hamilton gets on with his new team mate.
Valtteri Bottas was plucked from Williams after Rosberg's shock announcement. The calm Finnish driver is seen as the perfect foil for the tempestuous Hamilton, an outspoken driver not afraid to stand up to management.
Teams and drivers
Get all the latest statistics and profiles of teams and drivers ahead of the season-opening Australian F1 Grand Prix:
Mercedes
Base: Brackley, England
Constructors' Championships: 3
2016 Constructors' Championship: 1st
Engine: Mercedes
Team Principal: Toto Wolff
Valtteri Bottas No.77
Nationality: Finland
Age: 27
Debut: 2013 Australian Grand Prix
Races: 78
Wins: 0
Pole Positions: 0
Fastest Laps: 1
2016 Drivers' Championship: 8th
Best performance in Drivers' Championship: 4th (2014)
Lewis Hamilton No.44
Nationality: Britain
Age: 32
Debut: 2007 Australian Grand Prix
Races: 188
Wins 53
Pole Positions: 61
Fastest Laps: 31
2016 Drivers' Championship: 2nd
Best performance in Drivers' Championship: 1st (2008 with McLaren, 2014, 2015 with Mercedes)
Ferrari
Base: Maranello, Italy
Constructors' Championships: 16
2016 Constructors' Championship: 3rd
Engine: Ferrari
Team Principal: Maurizio Arrivabene
Sebastian Vettel No.5
Nationality: Germany
Age: 29
Debut: 2007 U.S. Grand Prix
Races: 179
Wins: 42
Pole Positions: 46
Fastest Laps: 28
2016 Drivers' Championship: 4th
Best performance in Drivers' Championship: 1st (2010, 2011, 2012, 2013 with Red Bull)
Kimi Raikkonen No.7
Nationality: Finland
Age: 37
Debut: 2001 Australian Grand Prix
Races: 253
Wins: 20
Pole Positions: 16
Fastest Laps: 43
2016 Drivers' Championship: 6th
Best performance in Drivers' Championship: 1st (2007 with Ferrari)
Williams
Base: Grove, England
Constructors' Championships: 9
2016 Constructors' Championship: 5th
Engine: Mercedes
Team Principal: Frank Williams
Felipe Massa No.19
Nationality: Brazil
Age: 35
Debut: 2002 Australian Grand Prix
Races: 252
Wins: 11
Pole Positions: 16
Fastest Laps: 15
2016 Drivers' Championship: 11th
Best performance in Drivers' Championship: 2nd (2008 with Ferrari)
Lance Stroll No.18
Nationality: Canada
Age: 18
Debut: (Debut season)
Races: 0
Wins: 0
Pole Positions: 0
Fastest Laps: 0
2016 Drivers' Championship: (Not applicable)
Best performance in Drivers' Championship: (Not applicable)
Red Bull
Base: Milton Keynes, England
Constructors' Championships: 4
2016 Constructors' Championship: 2nd
Engine: Renault, branded as TAG Heuer
Team Principal: Christian Horner
Daniel Ricciardo No.3
Nationality: Australia
Age: 27
Debut: 2011 British Grand Prix
Races: 109
Wins: 4
Pole Positions: 1
Fastest Laps: 8
2016 Drivers' Championship: 3rd
Best performance in Drivers' Championship: 3rd (2014, 2016 with Red Bull)
Max Verstappen No.33
Nationality: Netherlands
Age: 19
Debut: 2015 Australian Grand Prix
Races: 40
Wins: 1
Pole Positions: 0
Fastest Laps: 1
2016 Drivers' Championship: 5th
Best performance in Drivers' Championship: 5th (2016)
Force India
Base: Silverstone, England
Constructors' Championships: 0
2016 Constructors' Championship: 4th
Engine: Mercedes
Team Principal: Vijay Mallya
Sergio Perez No.11
Nationality: Mexico
Age: 27
Debut: 2011 Australian Grand Prix
Races: 117
Wins: 0
Pole Positions: 0
Fastest Laps: 3
2016 Drivers' Championship: 7th
Best performance in Drivers' Championship: 7th (2016)
Esteban Ocon (No.31)
Nationality: France
Age: 20
Debut: 2016 Belgium Grand Prix
Races: 9
Wins: 0
Pole Positions: 0
Fastest Laps: 0
2016 Drivers' Championship: 23rd
Best performance in Drivers' Championship: 23rd (2016)
Toro Rosso
Base: Faenza, Italy
Constructors' Championships: 0
2016 Constructors' Championship: 7th
Engine: Renault
Team Principal: Franz Tost
Daniil Kvyat No.26
Nationality: Russia
Age: 22
Debut: 2014 Australian Grand Prix
Races: 59
Wins: 0
Pole Positions: 0
Fastest Laps: 1
2016 Drivers' Championship: 14th
Best performance in Drivers' Championship: 7th (2015)
Carlos Sainz Jnr No.55
Nationality: Spain
Age: 22
Debut: 2015 Australian Grand Prix
Races: 40
Wins: 0
Pole Positions: 0
Fastest Laps: 0
2016 Drivers' Championship: 12th
Best performance in Drivers' Championship: 12th (2016)
Sauber
Base: Hinwil, Switzerland
Constructors' Championships: 0
2016 Constructors' Championship: 10th
Engine: Ferrari
Team Principal: Monisha Kaltenborn
Marcus Ericsson No.9
Nationality: Sweden
Age: 26
Debut: 2014 Australian Grand Prix
Races: 56
Wins: 0
Pole Positions: 0
Fastest Laps: 0
2016 Drivers' Championship: 22nd
Best Performance in Drivers' Championship: 18th (2015)
Pascal Wehrlein No.94
Nationality: Germany
Age: 22
Debut: 2016 Australian Grand Prix
Races: 21
Wins: 0
Pole Positions: 0
Fastest Laps: 0
2016 Drivers' Championship: 19th
Best Performance in Drivers Championship: 19th (2016 with Manor Racing)
Mclaren
Base: Woking, England
Constructors' Championships: 8
2016 Constructors' Championship: 6th
Engine: Honda
Team Principal: Eric Boullier
Fernando Alonso No.14
Nationality: Spain
Age: 35
Debut: 2001 Australian Grand Prix
Races: 274
Wins: 32
Pole Positions: 22
Fastest Laps: 22
2016 Drivers' Championship: 10th
Best performance in Drivers' Championship: 1st (2005, 2006 with Renault)
Stoffel Vandoorne No.2
Nationality: Belgium
Age: 24
Debut: 2016 Bahrain Grand Prix
Races: 1
Wins: 0
Pole Positions: 0
Fastest Laps: 0
2016 Drivers' Championship: 20th
Best performance in Drivers' Championship: 20th (2016)
Renault
Base: Enstone, England
Constructors' Championships: 2
2016 Constructors' Championship: 9th
Engine: Renault
Team Principal: Cyril Abiteboul
Nico Hulkenberg No.27
Nationality: Germany
Age: 29
Debut: 2010 Bahrain Grand Prix
Races: 117
Wins: 0
Pole Positions: 1
Fastest Laps: 2
2016 Drivers' Championship: 9th
Best performance in Drivers' Championship: 9th (2014, 2016 with Force India)
Jolyon Palmer No.30
Nationality: Britain
Age: 26
Debut: 2016 Australian Grand Prix
Races: 21
Wins: 0
Pole positions: 0
2016 Drivers' Championship: 18th
Best performance in Drivers' Championship: 18th (2016)
HAAS
Base: Kannapolis, North Carolina (U.S.) and Banbury, England
2016 Constructors' Championship: 8th
Engine: Ferrari
Team Principal: Gunther Steiner
Romain Grosjean No.8
Nationality: France
Age: 30
Debut: 2009 European Grand Prix
Races: 104
Wins: 0
Pole Positions: 0
Fastest Laps: 1
2016 Drivers' Championship: 13th
Best performance in Drivers' Championship: 7th (2013 with Lotus)
Kevin Magnussen No.20
Nationality: Denmark
Age: 24
Debut: 2014 Australian Grand Prix
Races: 41
Wins: 0
Pole Positions: 0
Fastest Laps: 0
2016 Drivers' Championship: 16th
Best performance in Drivers' Championship: 11th (2014 with McLaren)