Michael Schumacher helped Mercedes lift the lid on their 2010 car at a low-key roll-out in Valencia on Monday.
The seven-time champion and team-mate Nico Rosberg posed with the silver and turquoise car at the Circuit Ricardo Tormo where testing is under way.
Rosberg will be first to run the MGP W01 in the morning session before Schumacher takes over later on Monday.
The three-day session is the first of four in February before the season-opening Bahrain Grand Prix on March 14.
German car maker Mercedes bought out the Brawn GP team last year following its victories in both the drivers’ and constructors’ championships.
Schumacher, who turned 41 in January, has returned to the sport after a three-year retirement. BBC Sport
The team’s new challenger, which will be raced by Michael Schumacher and Nico Rosberg, features the ‘Silver Arrow’ livery that the team unveiled at Mercedes-Benz’s museum in Stuttgart last week.
The design features an unusual version of the ‘V-nose’ trend started by Red Bull last season - the Mercedes’ nose being extremely slim and also having a dip in the middle.
The chassis also sports a dorsal fin engine cover, albeit a much smaller one than that seen on cars launched by rivals in recent days. Sky Sports
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