Marussia unveils its 2012 challenger

Marussia has unveiled its new Formula 1 car - the MR01 - after it made its on-track debut at Silverstone on Monday. The Anglo-Russian team is running the car for the first time at the British track after it had failed the mandatory crash tests last week and was therefore unable to join its rival in Barcelona for the final test. "We are very pleased to be running the new MR01 for the first time this morning," said team boss John Booth

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