'Thanks to you, I have had an amazing engine,' the Spaniard told some 250 employees at the factory near Paris.
Ferrari's world champion Michael Schumacher, winner at Silverstone last year, qualified a disappointing ninth.
The 23-year-old Spaniard lapped the Magny-Cours circuit in one minute 14.412 seconds for his third pole in 10 races this season.
Fernando Alonso said he planned to see out his Formula One career at Ferrari after the Italian team announced on Thursday that they had extended the double world champion's contract to the end of 2016.
Fernando Alonso said allegations that his Renault team staged an accident to help the double Formula One world champion win last year's Singapore Grand Prix had surprised him as much as anyone. 'It is difficult to understand all this situation, all these investigations,' the Spaniard told reporters at the Italian Grand Prix on Thursday.
Fernando Alonso improved his chances of claiming a third Formula One world title by storming to pole position for the Singapore Grand Prix on Saturday.
Fernando Alonso passed a final medical examination on Thursday and will be able to participate in the Malaysian Grand Prix this weekend after the Spaniard missed the Formula One season-opener in Australia due to concussion.
McLaren's Lewis Hamilton added the Italian Grand Prix to his list of Formula One victories on Sunday while Ferrari's Fernando Alonso stretched his overall championship lead to 37 points with third place.
This year could be far more of a struggle for the 26-year-old Spaniard now that he is back at Renault.
McLaren driver Fernando Alonso has been cleared to race in Sunday's Formula One Chinese Grand Prix after undergoing further medical tests at the Shanghai circuit following the opening practice session on Friday.
Improving qualifying, without upsetting the race pace, will be the immediate priority for Ferrari whose last driver's title was with Kimi Raikkonen in 2007 and who last enjoyed constructors' success a year later.
Formula One world champion Fernando Alonso is confident he can stop Michael Schumacher's winning run in his Ferrari rival's home German Grand Prix this weekend.
Fernando Alonso led from pole position to chequered flag to win the German Grand Prix for Ferrari on Sunday while Germany's World champion Sebastian Vettel was stripped of second place for an overtaking infringement.
Michael Schumacher has won seven times at Magny-Cours, and can become the first driver to win the same Grand Prix eight times.
Winner of two Formula One championships in Brazil, Ferrari's Fernando Alonso says he feels less pressure and has nothing to lose as he chases another in Sunday's title-decider at Interlagos.
Ferrari will still win the Formula One championship despite failing to score any points in Britain at the weekend, according to their double world champion Fernando Alonso.
Renault's Fernando Alonso made his peace with future Ferrari team mate Felipe Massa on Friday before setting the pace in free practice for the Brazilian Grand Prix at Interlagos. While the Spaniard lapped with a best time of one minute 12.314 seconds, Brazilian Rubens Barrichello was the fastest of the three championship contenders ahead of what could be a title-deciding race on Sunday.
It was Hamilton's first pole position since Saudi Arabia in December 2021.
Renault's world champion Fernando Alonso has been elected as a director of the Grand Prix Drivers' Association in place of retiring Ferrari rival Michael Schumacher.
Fernando Alonso has backed Robert Kubica to replace him at Renault after the double Formula One world champion joins Ferrari at the end of the season.
Images from the inaugural Korean F1 Grand Prix held at the Yeongam International Circuit on Sunday.
Ferrari's Fernando Alonso won a rain-hit and chaotic Korean Grand Prix to seize the Formula One championship lead on Sunday after both his Red Bull rivals failed to finish.
German champions Bayern Munich have completed the transfer of former World Cup winner Xabi Alonso from Real Madrid on a two-year deal as they seek to boost their midfield options following a string of injuries.
Twice Formula One world champion Fernando Alonso made his first public appearance with his new Ferrari team at an event in Valencia, Spain on Sunday.
A lacklustre Bayern Munich needed a long-range goal from Spaniard Xabi Alonso to secure a 1-0 victory over Darmstadt 98 on Tuesday that put them into the quarter-finals of the German Cup.
Renault's double Formula One world champion Fernando Alonso has had to delay his return from holidays in Kenya after being involved in a minor plane incident, the team said on Monday.
"I think he is in the perfect position. Honestly, he has a strong car, they're very quick, very consistent," Schumacher said.
Bayer Leverkusen won their first trophy in 31 years with five matches left in the season, snapping Bayern Munich's 11-year stranglehold on the Bundesliga.
Italian Jarno Trulli was second while Narain Karthikeyan finished 11th, in the Malaysian Grand Prix.
Summary of sports events and persons who made news on Monday
Former world champion Fernando Alonso, enjoying little success on his return to Renault, said on Monday he would decide towards the end of the season whether or not to continue with the team. The Spaniard, who had an acrimonious split from McLaren last year, is 33 points adrift of championship leader Robert Kubica in ninth place with nine points.
McLaren sent Fernando Alonso a clear signal on Friday that they would welcome him back, despite a major falling out in 2007, should the Spaniard seek to leave Ferrari.
The Formula One title battle is turning into a straight duel between Ferrari's Fernando Alonso and Red Bull's Sebastian Vettel for the honour of becoming the youngest triple world champion.
Fernando Alonso seized pole position from McLaren team mate Lewis Hamilton at the Hungarian Grand Prix.
Double world champion Fernando Alonso was fastest in both free practice sessions for the U.S. Grand Prix on Friday, with McLaren team mate Lewis Hamilton a close second in the afternoon.
The Briton said McLaren are giving him the same chance of winning the title this season as team mate Fernando Alonso.
The double world champion made a perfect start to his return to Renault with the fastest time in testing at the Jerez circuit.
Fernando Alonso drove Ferrari's new Formula One car for the first time in Barcelona on Tuesday and said it was on another planet compared to the tricky one he wrestled into title contention last season.
