Return to McLaren coincides with team's tough first season of revived partnership with Honda. MP4-30 car proves painfully slow and unreliable, and in it Alonso scores in just two races, ending the year with a meagre 11 points.
As quick and consistent as ever, but cannot stop Ferrari faltering to first winless season since 1993 with the uncompetitive F14 T. Dominates team mate Raikkonen, but makes just two podium appearances en route to P6 in the standings and quits team at end of season.
Early season blighted by inconsistency, but fine wins in China and Spain plus seven further podiums mean he finishes a clear, albeit distant, second overall to Red Bull's all-conquering Sebastian Vettel - despite the Ferrari being not even the second-best car.
Despite the F2012's difficult beginnings, drives immaculately to score superb wins in Malaysia, Valencia and Germany and take healthy championship lead into the summer break. Ultimately loses out to resurgent Vettel, but pushes title race to final round.
Outdrives a car clearly inferior to Red Bull and McLaren opposition to score one win and nine podiums, crushing team mate Felipe Massa in the process. Misses out on third place overall by a single point to Red Bull's Mark Webber.
Asserts authority over team mate Massa with debut Ferrari win in Bahrain. Car struggles at subsequent rounds, but back on form by July. Overhauls 47-point deficit to lead standings before final race, where poor pit strategy sees him miss out on title, despite five season wins.
Hampered by a less than competitive Renault car, struggles to break clear of the midfield. Scores an unexpected pole in Hungary, but retires from the race after losing a wheel following a bungled pit stop. Back on the podium in Singapore and signs for Ferrari for 2010.
Helps transform Renault's R28 from a lacklustre performer into a race-winning machine, scoring back-to-back victories late in the season, including Formula One's inaugural night race in Singapore. Finishes fifth overall and commits to the team for another two years.
Tumultuous first season with McLaren, finishing third overall, level on points with rookie team mate Lewis Hamilton. Scores four wins, but relationship with team deteriorates after Ferrari 'spy scandal' affair. Quits to return to Renault for 2008.
Dominates the first half of the season with Renault, taking six wins from nine races, then fights off strong challenge from Michael Schumacher and Ferrari to successfully defend his drivers' title.
Scores seven victories en route to becoming the sport's youngest ever champion, aged just 24. Mature and measured performances in later races bring him the crown with two rounds to spare, seeing off Kimi Raikkonen in a quicker McLaren.
Strong, if ultimately disappointing season. Dominates team mate Jarno Trulli to finish fourth in the standings. Pole position at Magny-Cours and four podium placings, including second in France.
In Renault race seat is quickly hailed as the next Michael Schumacher. Becomes youngest ever pole sitter in Malaysia. Takes pole and victory in Hungary, lapping Schumacher in the process. Sixth in the driver standings.
Official test driver for Renault, putting in thousands of development kilometres. Also has one-off test with Jaguar.
Formula One debut season with Minardi. Best finish is a tenth place in Germany.
Moves to Formula 3000 with the Astromega team and scores a victory at the challenging Spa-Francorchamps circuit. Finishes the championship in fourth place.
Dominant performance in the Euro-Open Movistar Nissan single-seater series, with nine poles and six wins on his way to championship victory.
Runner-up in the European karting championship.