The car is the first true product of the team's revamped technical structure, following its mid-2011 decision to split with Wirth Research and the all-CFD philosophy and to take design in-house using more traditional windtunnel techniques.
Former Benetton/Renault technical chief Pat Symonds also came on board as a consultant.
Those changes, plus the 2012 progress that took Marussia to the brink of beating Caterham to 10th place in the constructors' championship, meant plenty of optimism at the team going into the new campaign.
But on the eve of the first tests the team had to release lead driver Timo Glock for financial reasons. GP2 graduate Max Chilton is the only driver signed so far, with fellow rookie Luiz Razia heading the queue for the currently vacant second seat.
2013 pre-season dates
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