Kovalainen, Franck Montagny and José María López tested the Renault R23B F1 car at Barcelona in December 2003. Kovalainen also tested for Minardi, but Renault made him second test driver alongside Montagny for 2004.
Kovalainen was promoted in Montagny's place at the end of 2005 and spent the 2006 season in a full-time testing role, logging over 28,000 km of testing.
Renault's lead driver Fernando Alonso had signed for McLaren for the 2007 season, and Renault elected to promote Kovalainen in his place, which they confirmed on 6 September 2006. Team boss Flavio Briatore said: "With Kovalainen, I hope to find the anti-Alonso."
Kovalainen made his race debut at the Australian Grand Prix. His season got off to a rough start; he made several mistakes during the race, finishing tenth. Flavio Briatore felt it was a disappointing debut for the young Finn and hoped the real Kovalainen would show up next time.
Kovalainen scored his first World Championship point in his second Grand Prix at Sepang, Malaysia, and followed this with a ninth place in Bahrain. He then secured seventh place in Barcelona, outperforming team-mate Giancarlo Fisichella, but finished down the order in Monaco, in 13th.
In Canada he made mistakes throughout practice, including one at the exit of turn 7, and hit the barrier. He crashed at the first chicane in qualifying, and damaged his rear wing significantly, and failed to make it through to the second qualifying session. In the race he made progress early on, and then halted. He had luck with the strategy and the Safety Car, and a podium was within his grasp, but he could not find a way past Alexander Wurz of Williams, who had also started towards the rear of the pack. Kovalainen was pulling away from the Ferrari of Kimi Räikkönen in the closing stages, which was a real confidence booster for the team.
In the United States Grand Prix at Indianapolis he qualified in sixth position, and a good start saw him go past Räikkönen into fifth place. He held Räikkönen off, and led the race at the end of his first stint when the cars ahead of him made their pit stops. He re-joined behind Räikkönen and looked comfortable in sixth place until Nick Heidfeld's BMW Sauber broke down in front of him, and thus, Kovalainen finished fifth, while team-mate Fisichella failed to score points.
The second half of the European season failed to produce equally strong results, but it did keep the points tally ticking over. During the French Grand Prix at Magny-Cours, he was battling with Fisichella until the sharp Adelaide hairpin, when Jarno Trulli's Toyota made an optimistic lunge up the inside of Kovalainen which wrecked both drivers' races. Kovalainen had to pit for repairs and eventually finished 15th. Seventh place at the British Grand Prix was no disaster, with Fisichella finishing behind him.
Kovalainen scored a point at both the Nürburgring and the Hungaroring, and scored three more in Turkey, with Kovalainen coming ahead of Robert Kubica. Kovalainen again led the Grand Prix when cars ahead of him made their pit stops. Seventh place at Monza was a fair result. The team took a gamble in the next race at Spa-Francorchamps, with Kovalainen on a one-stop strategy while his challengers for the rear end of the points were all on two-stop strategies, which included the BMW's of Heidfeld and Kubica (who was docked ten places down the grid due to an engine change), Nico Rosberg and Mark Webber. A good start from Kovalainen saw him become a mobile chicane for all of them except Webber. The gamble did not pay off, although Kovalainen held off Kubica in the closing stages to secure the final points position. Better was to come at the Japanese Grand Prix at Fuji Speedway, where, despite not making it through to the final qualifying session, Kovalainen raced well. While most of his rivals got into trouble one way or another in the hazardous wet conditions, Kovalainen did not and held off Kimi Räikkönen in the closing laps to take second place and his first podium in Formula One.
After finishing ninth in the Chinese Grand Prix, Kovalainen made a mistake in qualifying in Brazil and was left 17th on the grid. At the start of the race his team-mate Fisichella was involved in a collision with Sakon Yamamoto, which in turn caused Ralf Schumacher to collide with Kovalainen, forcing him to pit. On lap 36 he felt a vibration at the left rear, and suddenly the back end of the car snapped, launching Kovalainen into the barriers. The retirement, possibly caused by damage from the collision with Schumacher, was his first of the season, meaning he lost the once-in-a-lifetime opportunity of becoming the first driver to finish all of the races in his first season. At the time, he shared the record for most consecutive finishes from start of career with Tiago Monteiro, both having finished 16 races, until Max Chilton broke the record by finishing his first 25 races in 2013 and 2014.
At the end of the 2007 season Fernando Alonso returned to Renault, and Kovalainen was left with offers from Toyota and McLaren. On 14 December 2007 it was confirmed that Kovalainen would replace Alonso once again and drive for McLaren Mercedes in 2008, alongside Lewis Hamilton. Kovalainen joined Keke Rosberg, Mika Häkkinen and Kimi Räikkönen as Finnish drivers that have driven for McLaren.
After his first official testing session occurred on 9 January 2008 at Jerez, Kovalainen made his McLaren race début at the Australian Grand Prix, where he was quickest in the first qualifying session and started third on the grid behind Lewis Hamilton and Robert Kubica. He overtook Fernando Alonso on the final lap, but then accidentally hit the pit lane limiter granting fourth place to Alonso, himself finishing fifth, but Kovalainen did set the fastest lap of the race.
In Malaysia he was penalised five places for blocking Nick Heidfeld's BMW Sauber in the latter stages of qualifying, dropping to eighth. Kovalainen finished the race third as Hamilton faced problems in the pits, and Ferrari's Felipe Massa retired due to a spin. In Bahrain he flatspotted a tyre on the first lap and was consequently well off the pace of the Ferraris and the BMW Saubers. Towards the end he improved and recorded the fastest lap of the race again, coming home fifth.
At the Spanish Grand Prix, Kovalainen had just taken the lead, when his front-left tyre suddenly deflated and his car crashed into the tyre wall on lap 22. Kovalainen's car was almost completely buried under the tyres. The Safety Car was deployed for six laps as the debris was removed, and he was finally removed from the car and placed on a stretcher, at which point he gave a "thumbs-up". He was then taken by helicopter to a Barcelona area hospital for further tests. His final condition was a minor concussion, whilst also complaining of a sore elbow and neck. Kovalainen apparently did not lose consciousness at any point, according to the people who assisted him at the scene, but he himself had no memory of the accident nor of giving the "thumbs-up". The first thing he remembered was waking up at the hospital and the team doctor telling him what had happened. Kovalainen was released from the hospital two days later and he was able to race in Turkey. The cause of the accident was later determined to have been a production error on the wheel rim.
In the Turkish Grand Prix, evidence of the different driving styles used by the two McLaren drivers became apparent. Hamilton's more aggressive driving style meant that he had to adopt a three-stop strategy for the race due to concerns over his tyres' durability at Istanbul Park, while Kovalainen was able to use a two-stop strategy. Kovalainen qualified in second place, but suffered a puncture during a fight with Kimi Räikkönen in the first corner and dropped back to finish the race in 12th place.
More disappointment was to follow in Monaco when a software glitch stalled his car on the grid. He was able to start from the pitlane after the mechanics changed his steering wheel, and he made his way up to score a point for eighth place. In Montreal, Kovalainen experienced difficulties with his tyres, as they seemed to degrade much more rapidly than Hamilton's, and the team was forced to tell him to take it easy in order to avoid a puncture. He finished ninth, and later described his race as a total catastrophe, suspecting the tyre issues had something to do with his driving style. At the French Grand Prix Kovalainen started tenth on the grid, after being docked five places for blocking Mark Webber in qualifying, and finished the race in fourth.
At Silverstone, Kovalainen achieved his first pole position, and led the race for the first four laps, before Hamilton passed him at Stowe. Despite two spins due to losing grip on the wet circuit, Kovalainen finished fifth. After the race Kovalainen reported similar tyre problems that he suffered in Canada; after a few laps the rear tyres were completely degraded and had lost their grip.
At the German Grand Prix Kovalainen finished fifth. In the week leading up to the Hungarian Grand Prix, McLaren confirmed that Kovalainen would remain with the team for 2009. He won his first race at Hungary and became the 100th driver to win a Formula One Grand Prix after race leader Felipe Massa retired due to an engine failure with three laps remaining. After the race Kovalainen commented: "In previous races my driving was too hard on the tyres. For this race we made somewhat radical changes to the set-up, and they were definitely a step in the right direction." He finished the following race in Valencia in fourth position, which moved him into the top five in the championship.
In September Kovalainen elaborated on the tyre issues for Autosport. The problem seemed to be indeed caused by his different driving style compared to Hamilton, particularly the way he enters corners, uses brakes differently and then accelerates. Hamilton turns the car in a shorter time whereas Kovalainen is trying to make the corners more round, inadvertently causing more wear on the tyres. They had made progress by adapting the car and working on his driving style.
In Belgium he qualified third, but lost eight places at the start. On lap ten he collided with Mark Webber and was given a drive-through penalty, which dropped him to fifteenth place. He worked his way back up to seventh, but on the final lap had to retire due to a gearbox failure, which left him outside the points. At the Italian Grand Prix he qualified second behind Sebastian Vettel in the tricky wet conditions. In the race Kovalainen developed brake temperature problems, however, and could not match Vettel's pace, finishing in second place, but was disappointed at the lost chance for a win.
In Singapore, Kovalainen qualified fifth, and tried to overtake Kubica for fourth place at the start of the race, but they made contact at Turn 3, causing Kovalainen to lose two places to Glock and Vettel. During a Safety Car period, both McLarens pitted at the same time and Kovalainen had to queue up behind Hamilton, dropping him down the order to 14th. He ultimately finished tenth.
Prior to the Japanese Grand Prix Kovalainen discussed his driving style and the tyre problems in an interview with the Finnish newspaper Turun Sanomat, feeling they had now solved the issues. He explained his driving style was now very close to Hamilton's, as well as his car set-up. Hamilton's aggressive driving style seemed to work the best with the McLaren MP4-23, allowing the tyres to last longer. Hamilton hits the brakes harder and turns the car more quickly into the corner, while Kovalainen's softer driving style would be to drive with a longer curve into the corner, going easier on the brakes and accelerating halfway through the corner. Since the McLaren was harder on the tyres than the Renault and the Bridgestones were not quite as robust as the Michelins, that driving style now led to excessive tyre degradation. In Japan Kovalainen qualified third behind Hamilton and Kimi Räikkönen. During the initial tussle between Hamilton and Räikkönen, Kovalainen was pushed off the track along with several other cars. Kovalainen was running in third when on lap 17 his car suffered an engine failure.
At the Chinese Grand Prix on his 27th birthday, he qualified in fifth position despite leading the timesheets in the initial part of third qualifying. In the race, Kovalainen's first set of front tyres had been marked incorrectly, so the left tyre was installed on the right-hand side of the car and vice versa, meaning the tyres were spinning in the wrong direction, causing understeer. He reported the understeer on the radio, and during his first pit stop the mechanics tried to improve the situation by raising the front-wing angle. Now that he also had correctly marked tyres, however, meant that the front-wing was now causing oversteer and making the front of the car heavier. This possibly caused the puncture to his front right tyre on lap 35, forcing him to pit and drop down to 17th, before he finally retired on lap 49 due to a hydraulics problem.
Going into the Brazilian Grand Prix, Kovalainen qualified fifth on the grid, leading many to believe that the McLarens were fuelled heavier than the other frontrunners, having set the pace earlier in the weekend. Kovalainen eventually finished seventh.
At the start of the 2009 season McLaren were struggling for pace. Both Kovalainen and Hamilton failed to get into the top ten in qualifying for the first two races.
In the Australian Grand Prix, Kovalainen retired due to a collision with Mark Webber in the first corner and in Malaysia he spun off on the first lap while fighting for position with Hamilton and Massa. In China he scored his first points of the season by finishing fifth. McLaren gradually developed the car and results began to improve, with Kovalainen finishing eighth in Germany, fifth in Hungary and his best result of the season, a fourth place at the European Grand Prix. This was followed by back-to-back sixth places at Spa and Monza, and seventh in Singapore. He ended the season with 22 points having had five retirements, this left him in 12th position in the championship. On 18 November it was announced that recently crowned world champion Jenson Button had been signed on a multi year deal as Hamilton's team mate leaving Kovalainen without a 2010 F1 drive.
It was announced on 14 December 2009, that Kovalainen would drive for Lotus Racing in 2010 along with Jarno Trulli. The team made their debut at the Bahrain Grand Prix on 14 March 2010. The car was off the pace in pre-season testing, due to a lack of downforce caused by the need for a conservative initial design. Kovalainen finished in fifteenth position in the race, two laps down on winner Fernando Alonso.
In Australia, Trulli did not start the race and Kovalainen finished 13th. In Malaysia, Kovalainen retired with 10 laps to go, and followed this up with fourteenth in China, while in Spain Kovalainen failed to start with gearbox problems. He retired in Monaco with steering problems, and in Turkey with hydraulic problems. Kovalainen finished 16th in Canada, 2 laps down.
At Valencia on lap 9 Mark Webber's Red Bull hit Kovalainen's Lotus and went over the top, before landing and skidding into the barrier. Kovalainen recovered to the pits but retired from the race. A 17th place finish at Silverstoneand a fourteenth in Hungary sandwiched his fourth retirement of the season in Germany, due to damage caused by a collision with Sauber's Pedro de la Rosa. He retired yet again at the 2010 Singapore Grand Prix after his car caught fire in the final lap, although his decision to not go into the pit lane and instead stop at the side of the track and tackle the blaze himself was met with applause from the crowd.
Kovalainen remained with Lotus in 2011. At the season-opening Australian Grand Prix, he was forced to retire after a water leak, before recording his first finish of the season in Malaysia where he finished 15th, before a 16th place finish in China. He finished 19th in Turkey and crashed out in Spain, having started from 15th on the grid, outqualifying the Force Indias of Paul di Resta and Adrian Sutil. He finished 14th in Monaco and 19th at the European Grand Prix, with further retirements in Canada and Great Britain. Kovalainen finished 16th at the German Grand Prix, before another retirement due to a water leak in Hungary. Kovalainen then finished each of the next five races, with a best placing of 13th at the Italian Grand Prix. He also finished on the lead lap, in 18th place at the Japanese Grand Prix, and finished ahead of the Saubers of Kamui Kobayashi and Sergio Pérez in Korea, in 14th place. In India, Kovalainen finished 14th again, running as high as tenth place during the race.
During the season, Kovalainen outqualified team-mates Trulli and Karun Chandhok in 17 out of the 19 races held, and Team Lotus principal Tony Fernandes stated that he was satisfied with Kovalainen's performance over the season.
Kovalainen was retained by the team – renamed Caterham F1 for 2012 – for a third year, partnering Vitaly Petrov. This season was more stable, as Kovalainen finished all races but the initial Australian Grand Prix.
Kovalainen and Petrov were dropped in favour of Charles Pic and Giedo van der Garde ahead of the 2013 season, but Kovalainen remained on good terms with Caterham, attending the Malaysian Grand Prix as a personal guest of Tony Fernandes. Ahead of the Bahrain Grand Prix, the team announced that it had re-signed Kovalainen as one of its reserve drivers, replacing Ma Qing Hua and alongside Alexander Rossi, in which role he will take part in the first free practice sessions in Bahrain and Spain.
On 14 November 2013 it was confirmed by the Lotus F1 Team that Kovalainen would stand in for regular driver Kimi Räikkönen as Räikkönen was having back surgery. Kovalainen raced at the United States Grand Prix and the Brazilian Grand Prix. He finished 14th in both races.
He was linked with joining Mercedes as a test driver for 2014, however it was never confirmed. I hope we will see him again some day in F1. Even if it's just as a test driver...
