 Complete the following phrase:  Marussia Motors managed their own factory works team after buying into a large stake of the Virgin Racing Formula One team. Later becoming Marussia F1, the team competed between 2012 and part-through 2014. In its first F1 season, it placed 11th in the Constructors Championship, improving one position to 10th the following year. Thanks to Bianchis exploits at the 