A list of the 18 confirmed drivers for the 2015 Formula One season ahead of the first practice session of the season in Jerez on Sunday.
Ferrari
Sebastian Vettel
After a troubled final season with Red Bull, the four-time world champion will carry the hopes of delivering a first world title for Ferrari since 2007.
Kimi Raikkonen
The Finn was the last man to deliver a title for Ferrari, but failed to live up to expectations on his return to the Italian team last season as he finished 12th in the drivers' standings without a podium finish in 19 races.
Force India
Sergio Perez
The Mexican will be looking to prove his worth having penned a multi-year deal with Force India with an improvement on last season's 10th-placed finish in the drivers' standings expected.
Nico Hulkenberg
Hulkenberg regularly outperformed his teammate last season to register a career best ninth in the world championship. However, he will be targeting an elusive first podium in 2015.
Lotus
Romain Grosjean
Grosjean will be hoping for a return to his 2013 form after a disappointing season riddled with retirements last season, although much will depend on the competitiveness of his Lotus car.
Pastor Maldonado
Maldonado fared even worse in the luckless Lotus in 2014 with just two points to his name, but the Venezuelan has maintained his seat in Formula One for a fifth consecutive season.
McLaren
Fernando Alonso
Alonso's quest for an illusive third world title has taken him back to McLaren, where he suffered a turbulent year in 2007 marked by his frosty relationship with then rookie teammate Lewis Hamilton and McLaren being expelled from the constructors' championship and fined $100 million for spying on Ferrari's technical data.
Jenson Button
2009 world champion Button will be under pressure to perform after being left waiting until December to know for sure that he would have a seat for a 16th consecutive season, just edging out Kevin Magnussen for the right to be Alonso's teammate.
Mercedes
Lewis Hamilton
Fresh from a second world title and 11 race wins in 2014, Hamilton rightly starts as favourite for a third drivers' title presuming Mercedes new model can live up to the standards it set last year.
Nico Rosberg
Rosberg's remarkable consistency that saw him finish outside the top two only four times in 19 races would have been enough to deliver a maiden world title in plenty of other years. A new season offers a new chance to renew his sometimes tense rivalry with Hamilton.
Red Bull
Daniel Ricciardo
Australia's Ricciardo will be hopeful of building on a sensational first year with Red Bull as he outperformed Vettel to claim third place as best of the rest behind the two Mercedes in the drivers' championship.
Daniil Kyvat
At just 20, Kyvat already has a full season of F1 experience behind him at Toro Rosso, but the demands will be much higher as takes the step up into Vettel's shoes.
Sauber
Marcus Ericsson
Ericsson has switched from the financially stricken Caterham to Sauber after a debut season to forget in which he failed to register a point in 16 races before the money at the Malaysian team ran out and he was replaced by British rookie Will Stevens for the final race of the campaign.
Felipe Nasr
Former Formula 3 champion Nasr will make his bow as an F1 driver this season after performing test duties for Williams last season.
Toro Rosso
Max Verstappen
At just 17, Dutch wonderkid Verstappen will become the youngest ever F1 driver when he takes to the grid in Australia come March. Son of former Formula One driver Jos Verstappen, he takes the step up after just one season in Formula 3 during which he recorded 10 victories.
Carlos Sainz Jr
Another of rich motor sport heritage, Sainz Jr is the son of former World Rally champion Carlos Sainz and will also be making his F1 bow at just 20 years old.
Williams
Felipe Massa
The veteran Brazilian enjoyed a return to form at the end of 2014 with back-to-back podiums to finish the season as Williams moved ahead of Ferrari in the constructors' championship, but he was still second best in his own team behind Valtteri Bottas.
Valtteri Bottas
Bottas overshadowed his countryman Raikkonen to finish fourth in the world championship in 2014 with four podiums. Staying ahead of the likes of Vettel, Alonso and Button may prove a big challenge this season.
Source: AFP
