Force India presented their new Formula One car on Friday with only one driver, Britain's Paul Di Resta, in attendance and mystery surrounding the identity of his likely team mate.
McLaren have halted work on a new suspension system after Formula One's governing body warned teams that anything that changes a car's ride height between qualifying and the race is illegal.
Formula One world champion Jenson Button will start next season with a more aggressively designed McLaren than the one Lewis Hamilton struggled with for much of this year.
Formula One championship leader Nico Rosberg has apologised for colliding with team mate Lewis Hamilton during Sunday's Belgian Grand Prix and has been disciplined, his Mercedes team said on Friday.
Niki Lauda expects departing Mercedes team principal Ross Brawn to return to Formula One in some capacity once he has gone fishing and taken time out.
Formula One's post-season shake-up took another spin on Tuesday with Williams announcing the departure of technical head Pat Symonds while Valtteri Bottas moved closer to Mercedes and Felipe Massa's retirement looked to be coming to an end.
Lewis Hamilton had his first taste on Friday of the Mercedes car that he hopes will make him Britain's first four-times Formula One world champion this season.
Nico Rosberg invited Ferrari's Sebastian Vettel to attend Mercedes' Friday debrief at the Malaysian Grand Prix after a light-hearted exchange between the Formula One rivals last weekend.
Formula One champion Lewis Hamilton crashed into the tyre wall but still stayed top of the timesheets after a rain-lashed Canadian Grand Prix practice on Friday.
A summary of sports events and persons who made news on Tuesday
Germany's Nico Rosberg celebrated his first Formula One world championship on Sunday after finishing runner-up in a tense Abu Dhabi Grand Prix won by Mercedes team mate Lewis Hamilton amid accusations of 'dirty tricks'.
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.
Britain's Lewis Hamilton won the Bahrain Formula One Grand Prix on Sunday after a thrilling duel with Mercedes team mate Nico Rosberg.
Russian Grand Prix winner Lewis Hamilton might cover the distance in a matter of minutes but it has taken more than half a century for Mercedes to add their names to the likes of Ferrari, McLaren and Williams.
Ross Brawn will stand down as principal and leave the Mercedes Formula One team at the end of the year, Mercedes said in a statement on Thursday.
Formula One has lost another of its principals.
Britain's Lewis Hamilton became Formula One world champion for the second time after winning the season-ending Abu Dhabi Grand Prix for Mercedes on Sunday.
Lewis Hamilton walked away from a heavy crash after putting in the first laps of Formula One's new turbo era in testing with Mercedes on Tuesday.