Adrian Newey accused Red Bull's rivals of being afraid to supply them with engines for 2016 and warned there is a real risk of the four times world champions walking away from Formula One.
Each of the three title contenders had them in 2025: Norris might have had an easier run to his first crown had he not driven into the back of Piastri's car and retired in Canada three laps from the end.
Red Bull's Max Verstappen won the Qatar Grand Prix on Sunday with the battle for the constructor's title going down to next weekend's Abu Dhabi season-ender
This year's Formula One title race looks wide open to Red Bull's triple World champion Sebastian Vettel.
The reason for doing so was not disclosed in the statement.
Red Bull's Max Verstappen won the Las Vegas Grand Prix on Saturday but McLaren's Lando Norris had one hand on the Formula One title after finishing second and stretching his lead over teammate Oscar Piastri to 30 points.
Mercedes can hardly wait for Sunday's Abu Dhabi Formula One title decider to be over so they can tie Lewis Hamilton down to a long-term contract.
Norris won't ask Piastri to gift him F1 title in Abu Dhabi
Vandoorne qualified 17th at the previous race in Bahrain, 16th in China and 18th in the Australian season-opener, with 20 cars on the grid.
Kimi Raikkonen is enjoying being at Ferrari more than ever this season.
F1 champion Max Verstappen revelled in McLaren's strategy horror show at the Qatar Grand Prix on Sunday.
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.
The regulations have not changed significantly but there are always details that can be improved, new ways of packaging the whole. And teams will want to know who has done something different.
Fernando Alonso on Thursday refused to categorically rule out leaving current team Ferrari as soon as next season for either former outfit McLaren or reigning champions Red Bull.
The pole was a record-extending 88th of Hamilton's career and fifth of the season.
Formula One is to award double points for the last race of the season in a controversial attempt to keep championships undecided to the very end after four years of Red Bull domination.
George Russell took Mercedes' first win of the Formula One season in Canada on Sunday while McLaren's Oscar Piastri went 22 points clear in the championship after teammate Lando Norris smashed into him and retired.
Verstappen wins in Qatar to ensure three-way title showdown
He won a high-profile privacy case against the News of the World newspaper in 2008 after it said he had taken part in a "sick Nazi orgy".
Formula One World champion Sebastian Vettel drove his new Red Bull for the first time on Thursday with the team saying they were on course to tick all the right boxes in pre-season testing at Jerez.
Lewis Hamilton will bring down the curtain on his Mercedes career in Abu Dhabi on Sunday as his past and future Formula One teams, McLaren and Ferrari, fight for a constructors' title to end years of waiting.
McLaren's Oscar Piastri ended a long win drought with a pole-to-flag victory in the Qatar Grand Prix sprint race in Doha.
Lando Norris stretched his Formula One championship lead to nine points after winning Saturday's Sao Paulo sprint while McLaren teammate and title rival Oscar Piastri crashed in a big blow to the Australian's bid to get back on top.
Four-times World champion Max Verstappen was given an aerodynamic tow by teammate Yuki Tsunoda to go top on his first flying lap.
Hamilton clarifies remarks, says he remains committed to Ferrari project
F1 leader Oscar Piastri seized pole position from teammate and title rival Lando Norris by a hefty margin as dominant McLaren locked out the front row in Spanish Grand Prix.
McLaren's Lando Norris took an emphatic pole position at the Sao Paulo Grand Prix on Sunday after Red Bull rival Max Verstappen qualified only 17th in a wet and crash-strewn session at Interlagos.
Oscar Piastri won the Dutch Grand Prix to take a mighty 34 point lead in the Formula One championship on Sunday as McLaren teammate and title rival Lando Norris saw his hopes go up in smoke.
Christian Horner was the longest-serving team principal, having been in the position since Red Bull made its Formula One debut in 2005.
Lewis Hamilton won the Chinese Grand Prix to seize the overall lead from his Mercedes team mate Valtteri Bottas in Formula One's 1,000th world championship race on Sunday.
Formula One will crown its champion in Abu Dhabi on Sunday with McLaren's Lando Norris and Oscar Piastri both seeking to dethrone Red Bull's Max Verstappen and deny the Dutchman his fifth title in a row.
If Formula One stands on the edge of the unknown, with new technologies and a very different engine to last year, then the start of pre-season testing on Tuesday should at least show what the future sounds like.
A new qualifying format will shake up the Formula One starting grids this season, adding to the stress on teams and drivers and making races more exciting.
Lando Norris can be crowned champion on Sunday but a win for Oscar Piastri would take the battle down to a final showdown in Abu Dhabi next weekend.
Lewis Hamilton will launch his bid to win the drivers' championship at a third F1 team when he makes his much-anticipated debut for Ferrari in the season-opening Australian Grand Prix.
Australian driver Oscar Piastri, 23, emerged victorious in his first ever Formula One race at the Hungarian Grand Prix on Sunday.
Australian Oscar Piastri roared back from season-opening disappointment in his home race by winning the Chinese Formula One Grand Prix from pole position in a McLaren one-two with championship-leading teammate Lando Norris on Sunday.
Kimi Raikkonen made clear on Friday that his Lotus Formula One team had issues to resolve before he could have serious discussions about staying on next season.
Max Verstappen seized pole position for Sunday's US Grand Prix while Formula One leader Oscar Piastri qualified sixth after a costly sprint race collision with his McLaren teammate Lando Norris.
Formula One rolls into Malaysia this week for the second round of the championship at the Sepang International Circuit, where talk surrounding the utter dominance of Mercedes will for once take a back seat to the belated arrival of Fernando Alonso.