Pirelli are coming under pressure to make longer-lasting Formula One tyres after Sunday's Chinese Grand Prix saw drivers lifting off the throttle rather than go flat-out to the flag.
McLaren drivers Fernando Alonso and Jenson Button will start last in Sunday's Belgian Formula One Grand Prix after being hit with heavy grid penalties for changes to their Honda power units.
"For now, there is no proof (gas was used). This is based solely on their personal conviction as they had stomach aches when they woke up," he said.
McLaren ace Jenson Button has claimed he won't win a single race this season with his current car after finishing ninth in the inaugural Australian Grand Prix on Sunday.
The 19-race Formula One season, which starts in Melbourne on March 17, will have no new Grands Prix this year and one fewer than last season following the postponement of New Jersey's debut to 2014. The following box details each race and its key characteristics.
Lewis Hamilton will start Sunday's season-ending Brazilian Formula One Grand Prix on pole position in his farewell to McLaren, with teammate Jenson Button alongside.
Formula One championship leader Sebastian Vettel looked good for pole position at the Indian Grand Prix on Saturday after completing a practice hat-trick.
Jenson Button was fastest and team mate Lewis Hamilton second as McLaren dominated practice at a wet German Grand Prix on Friday while Michael Schumacher emerged unscathed from an embarrassing crash.
Jenson Button and his Brawn GP team were crowned Formula One champions with a race to spare in an action-packed Brazilian Grand Prix won by Red Bull's Australian Mark Webber on Sunday.
McLaren's gamble on overhauling their car for the 2013 season looked to have backfired on Friday when they had a miserable day in the first two practice sessions at the Australian Grand Prix.
Britain's Lewis Hamilton won the Italian Formula One Grand Prix for McLaren on Sunday with Sauber's Mexican driver Sergio Perez finishing second.
McLaren have yet to unlock the potential of their new Formula One car with the start of the season looming, according to Jenson Button.
Struggling McLaren can still win a race this season and next month's Belgian Grand Prix could be their best bet, according to Jenson Button.
Lewis Hamilton was left feeling numb after failing to finish his final race for McLaren on Sunday despite starting on pole position and leading the race.
Red Bull's Sebastian Vettel became Formula One's youngest triple world champion at the age of 25 at the Brazilian Grand Prix on Sunday.
McLaren gave their rivals something to chew over on Tuesday as Jenson Button kicked off Formula One's pre-season testing with a lap comfortably quicker than anyone else's.
Lewis Hamilton took pole position, his third of the season, at the Hungarian Grand Prix on Saturday after dominating the two days of practice.
Last year's inaugural Indian Formula One Grand Prix taught McLaren team principal Martin Whitmarsh an important driving lesson: Steer clear of the country's public roads as much as possible.
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.
Britain's Jenson Button finished second for McLaren. Team mate and compatriot Lewis Hamilton placed third for the third race in a row to take the championship lead.
McLaren's Lewis Hamilton triggered a fresh Twitter storm on Monday by wrongly accusing Formula One teammate and compatriot Jenson Button of disrespect by 'unfollowing' him on the social media site.
Mexican Sergio Perez will replace Lewis Hamilton at McLaren next season, the Formula One team said on Friday.
World champion Sebastian Vettel won an incident-packed Singapore Grand Prix on Sunday to strengthen his chances of claiming a third successive Formula One title.
Media reports suggested the McLaren driver, whose wife is Japanese, was likely to announce at this weekend's Japanese Grand Prix that he would be leaving Formula One at the end of the year.
Lewis Hamilton felt no need to seek out Jenson Button to apologise for his Belgian GP Twitter gaffe on Thursday and said he had learned from the experience, would not be repeating the error and had moved on.
McLaren's Jenson Button has criticised team mate Lewis Hamilton for revealing confidential car data on Twitter before Sunday's Belgian Grand Prix in a gaffe that may have helped Formula One rivals.
McLaren's Jenson Button won the Belgian Grand Prix from pole position on Sunday after a first corner carnage ended the hopes of team mate Lewis Hamilton and Ferrari's Formula One leader Fernando Alonso.
Jenson Button ran away with the Turkish Grand Prix Sunday to stretch his overall Formula One lead to 26 points with a sparkling sixth victory from seven races.
McLaren Mercedes might not have the best of the free practice sessions on Friday, but its drivers -- Lewis Hamilton and Jenson Button -- have already set their sights on tomorrow and said a good qualifying race will be key to the team's success in Sunday's race.
McLaren can deny Red Bull's Formula One leader Sebastian Vettel a fourth straight win, Jenson Button said at the Indian Grand Prix on Thursday.
Jenson Button ignored an incident-packed race behind him and calmly steered his McLaren to victory at the season-opening Australian Grand Prix ahead of world champion Sebastian Vettel on Sunday.
Force India Formula One driver Paul Di Resta has appointed Jenson Button's manager Richard Goddard to run his affairs after falling out with Lewis Hamilton's father.
Force India Formula One driver Paul Di Resta has appointed Jenson Button's manager Richard Goddard to run his affairs after falling out with Lewis Hamilton's father.
Lewis Hamilton took pole position for the Italian Formula One Grand Prix on Saturday in an all-McLaren, and British, front row with team-mate Jenson Button alongside.
Jenson Button celebrated his 50th Formula One race for McLaren by ending a three-year wait and taking pole position in qualifying at the Belgian Grand Prix on Saturday.
Quadruple Formula One world champion Sebastian Vettel went for five on Friday with the German choosing to have that numeral on his car when he is eventually deposed as number one.
Ferrari and Red Bull like the look of it but for McLaren, and their world champions Lewis Hamilton and Jenson Button, it is not a pretty sight.
McLaren's Jenson Button won the Formula One season-opening Australian Grand Prix ahead of world champion Sebastian Vettel on Sunday.
The McLarens of Britons Jenson Button and Lewis Hamilton posted the fastest times as Formula One got back to business with the first two practice sessions for the season-opening Australian Grand Prix on Friday.
McLaren's Jenson Button set the pace in a rain-hit practice for the Monaco Grand Prix but kept a wary eye on rivals Lotus.