Jenson Button may be the reigning Formula One World Champion, having claimed the crown in 2009, but too many questions still remain regarding his talent or whether it was just right car, right time.
It's hard to remember when a driver's debut caused quite so much controversy, but when Frank Williams announced that a 20-year-old was to line up alongside Ralf Schumacher for the 2000 season, the media went in to overdrive.
The Frome youngster (as he was then known) managed to silence his critics with a series of impressive track performances however.
A nightmare qualifying hour in Australia saw him start his first race from 21st on the grid, but things got noticeably better as the season progressed.
Button claimed his first world championship point in Brazil and the youngster went on to finish eighth in the 2000 drivers' championship with 12 points.
One of the highlights of the year was in Belgium, where a third-placed Button lined up on the grid ahead of hero Michael Schumacher. But this was one occasion when his inexperience let him down; an over-ambitious passing manoeuvre dropped him back early in the race, spinning an unimpressed Jarno Trulli into retirement at the same time.
Despite a strong debut season, Jenson was dropped in favour of ChampCar star Juan Pablo Montoya, and the Englishman found himself on loan to Benetton (soon to become Renault) for the next two seasons.
2001 was a disaster for the team and particularly for Button as he was outperformed by Giancarlo Fisichella. Subsequent criticism claimed that Jenson was too keen on the trappings of being an F1 driver and his focus on the job had diminished.
Things came to a head when the Monaco harbour master provided Jenson's yacht a better position than his team boss Flavio Briatore during the grand prix weekend. Suffice to say, Flav wasn't amused.
Jenson's subsequent split with managers Steve and David Robertson, who had landed him his Williams contract, led to a more stable period during 2002 when he frequently outraced and outscored new team-mate Jarno Trulli, even if he wasn't able to outqualify him.
Button was on course to claim his first-ever podium position in the Malaysian GP, but a suspension failure an agonising two laps before the end of the race meant he had to limp home in fourth place.
At the end of 2002 Jenson switched to BAR. It was a move that was to be the making of the young Englishman.
Paired with Jacques Villeneuve, Jenson more than matched his illustrious team-mate, even if that elusive first podium remained just out of reach.
But if 2003 was an impressive retort to his critics, 2004 muted any claim that, to quote Villeneuve, Button was merely a 'boyband member.'
Driving with the smooth style that was a highlight of the campaign, Jenson broke his podium duck in the second race of the season. Another duly followed at Bahrain, and Jenson then went one better by finishing second at Imola having started the race on pole.
He finished second again at Monaco, and in all made 10 separate trips to the podium during the season.
Yet if Jenson was never out of the limelight in 2005 it wasn't entirely due to his eye-catching performances on the track.
At the start of August Jenson stunned the world of F1 by announcing that he had signed a contract to drive for Williams.
A shocked BAR team immediately claimed that they were the only team to hold a valid contract with Jenson. The increasingly-tedious saga dragged on for months and while Jenson's performances never waned, the issue proved to be an unwelcome and unedifying distraction.
It wasn't until the week before the season finale at Brazil that F1's Contract Recognition Board ruled in BAR's favour and confirmed that Jenson had to remain at Brackley.
Not that the fallout ended there, however, with Jenson ditching manager and advisor John Byfield over the winter.
Jenson's desire to join Williams seemed justified when his 2005 campaign began with a string of nine pointless finishes, three of which were courtesy of a FIA ban imposed on BAR after the San Marino Grand Prix.
But the team bounced back with JB scoring points in every one of the final 10 races.
The grit and determination shown by BAR also convinced Jense that Honda and not Williams held the key to him winning a drivers' championship title.
Yet another contractual fiasco ensued, although instead of leaving this one to the courts, JB bought his way out of his Williams deal and signed a long-term contract with Honda Racing.
2006 saw him race alongside a new team-mate in Rubens Barrichello, and it wasn't long before Jense had the upper hand and was clearly entrenched as Honda's No.1 driver.
That was further highlighted when the Brit, and not experienced race-winner Barrichello, clinched Honda's first-ever victory at the 2006 Hungarian Grand Prix.
And although some would argue that Button's win was handed to him by the misfortunes suffered by the likes of Alonso and Schumacher, a win is a win no matter how it comes about. Even his 'Button-bashing' detractors acknowledged that Jenson produced a fabulous drive in extremely difficult circumstances.
The ten points earned through his long-awaited maiden victory helped the Brit to sixth place in the Drivers' standings.
Despite starting the 2007 season with high hopes, which included predictions of more wins to come, the season-opening Australian GP quickly put things into perspective for Jense and Honda.
He qualified down in 14th place as a result of handling problems and the race was no better as he endured considerable understeer throughout, was given a drive-through penalty for speeding in the pit lane and finished 15th.
It was to prove a dismal season with Honda's car aerodynamically poor, difficult to drive and too slow. Jenson himself described it as "a complete dog" before threatening to leave unless the team.
The appointment of Ross Brawn as the team's technical supremo quelled that threat but Brawn's arrival ultimately failed to spark the revival sought in 2008. Just one points-scoring finish in the 18 races was all the Jense was able to achieve, leaving him down in 18th place in the standings.
In fact Honda's performances from the start were so dismal that the team almost immediately turned their attention to the 2009 Championship, which will see new rules change the face of F1 and the cars.
But everything was thrown up into the air at the end of the year when Honda announced they were selling their F1 team. And after weeks of speculation it was finally announced on March 6th that Ross Brawn had bought the team.
With only a week or two of testing before the start of the new season, Button and Brawn GP started on the back foot, however, they were quickly up to speed. Many, though, believed running on fumes was the reason for their pre-season pace but they were quickly proven wrong at the season-opening Australian GP.
Button clinched pole position, proving the BGP001 had genuine pace, and followed that up with the victory much to the joy of Brawn GP and the amazement of those watching the Brawn story unfold.
The Brit followed up his Melbourne win with another five in the ensuing six races, giving him a very healthy lead in the Drivers' Championship with only his team-mate Rubens Barrichello up there to challenge him.
His Monaco GP victory also saw him put his name in the record books, joining the likes of Schumacher and Fangio as one of only five drivers to have won five from six.
But with the Brawn's rivals adopting the controversial double-decker diffuser incorporated in the BGP001 from the very start of the season, Button and his team found their form faltering from the British GP onwards.
Just two podium finishes in the final ten races led to major criticism of both Button's talent and his mental ability to cope with pressure.
However, the massive lead he created in the first half of the Championship ensured that he won the title at the Brazilian GP, coming from 14th on the grid to finish fourth and earn the points needed to ensure he could tackle the season-finale without any pressure on his shoulders.
In a shock move after the season, though, Button threw himself into the pressure pot, announcing that he was walking away from Brawn GP in favour of partnership Lewis Hamilton at McLaren in 2010.
There has been mixed reaction to his decision with some questioning his sanity and others feeling this is perhaps the only way Button can prove that he won the 2009 title, not the car.
