The new Martini Williams FW37 has been shown off for the first time, before it is used in the 2015 Formula One season.
An auction into Marussia's remaining assets has been cancelled with the team understood to be involved in advanced talks with a potential buyer.
Birmingham-based GA European Valuations (GAEV) conducted one auction in mid-December when minor items such as steering wheels, manufacturing and office equipment and drivers' race suits were sold.
That followed the team falling into administration in October with debts of around £60million, resulting in them missing the final three grands prix of last season.
However, work has been ongoing behind the scenes in a bid to get the team on the grid for this season, albeit with a deadline of Wednesday fast approaching.
Hockenheim will host this year's German Grand Prix instead of alternating with the Nurburgring, Formula One's commercial supremo Bernie Ecclestone told Reuters on Thursday.
"It's going to be at Hockenheim, we're in the middle of doing something with them. It can't be Nurburgring because there's nobody there," said the 84-year-old Briton.
Hockenheim hosted last year's German race under an agreement to alternate with the Nurburgring, which is under new ownership.
The 2015 calendar does not currently specify a venue for the July 29 race, however.
"We've got a contract in place (with Hockenheim), we just have to amend the years of the contract. It was alternating with Nurburgring so we'll just take that out," said Ecclestone. (Reporting by Alan Baldwin, editing by Justin Palmer)
Jenson Button's McLaren future will be decided on Thursday, the Formula One team have announced.
The English driver is being considered alongside Kevin Magnussen for will partner Spaniard Fernando Alonso next season.
Jenson Button and Kevin Magnussen will have to wait a few more days yet before discovering their fate with McLaren.
A McLaren spokesperson has confirmed the team will not be making any driver selection announcements until next week at the earliest.
Button expressed his frustration on Thursday when he told Press Association Sport: "I just want to get it done.
"I want to hear the decision - as we all do - so we can all move on in whatever direction."
The 34-year-old made clear, however, that although his preference is to remain in F1, he has other irons in the fire which he is more than happy with.
McLaren are expected to announce whether Jenson Button will be racing for them next yearRead the full story ›
South Korea will host a Grand Prix in 2015 after the FIA added the nation to its race calendar once more.
Mexico has also been added to the list of events hosts, meaning there will be 21 rather than 19 races next year.
Formula One have scrapped the much-criticised double points in the final race system after just one season.
The World Motor Sport Council ratified the decision on Wednesday following a Formula One Commission meeting in Geneva.
It was hoped the rules would help prolong interest in the championship and attract higher television audiences, but lambasted by drivers and fans alike.
Jenson Button's McLaren future will be decided on Thursday when the team's board meet on Thursday.
It is between Button and Kevin Magnussen for who will retained alongside imminent signing Fernando Alonso.
McLaren group chief executive Ron Dennis said following the season-ending Abu Dhabi Grand Prix: "'I've not made up my mind yet, but (the decision on the driver line-up) is not mine alone, and anyway, it wouldn't be appropriate.
"Any decision has to be supported by the shareholders and the board.
''It's pretty understandable we're looking at two people, and there's a broader choice than Kevin and Jenson, but nevertheless whatever the decision, it won't be taken until (the board meeting).''
Despite a good season & 22 pts, I'll not drive anymore for Toro Rosso in 2015. Thanks for those years. Let's go for another big challenge.
Jean-Eric Vergne has announced he will not be driving for Toro Rosso next season, ending months of speculation over his future in Formula One.
The Frenchman missed out on a high-profile promotion to parent team Red Bull, with his rookie team-mate Daniil Kvyat selected to take over from departing four-time world champion Sebastian Vettel.
Vergne, 24, was still amongst the contenders to drive for Toro Rosso in 2015 - although one seat was taken when the marque announced 17-year-old Max Verstappen would be welcomed into the fold.
On the surface there appears to be very little room left on the grid for Vergne, with McLaren and Caterham the only teams yet to finalise their driver line-ups and the latter still unsure as to their own future in F1.