German driver Timo Glock has parted company with Marussia.
Glock joined F1 with Jordan in 2004, scoring points on his début in Canada. After winning the GP2 crown in 2007, he joined Toyota and claimed three podiums, with a best finish of second place in the 2008 Hungarian Grand Prix and 2009 Singapore Grand Prix.
Toyota pulled out of F1 at the end of 2009 and Glock sought refuge with Virgin Racing, which morphed into Marussia at the start of 2012, but in three seasons the team has so far failed to score a championship point.
"I have had three excellent years with the Marussia F1 Team, during which I had the chance to actively participate in building and developing the Team in its endeavours to succeed within the Formula 1 World Championship," Glock said.
"I would like to wish the Team good luck in navigating this next period and thank everyone for the great times we shared and the support I have received. Although it is not the path I expected to be taking, I am in fact very excited about what the future holds in terms of my own career and I hope to comment on that very soon."
Team principal John Booth thanked the German for his contribution to the team.
"Timo has made a very significant contribution to our Team over the past three seasons, helping us to develop our package to the point where, for a large proportion of the 2012 season, we were holding 10th place in the Constructors’ Championship."
"Timo is a fantastic driver and he has been a very popular member of the Team."
Booth added that financial conditions meant that Marussia had to secure their long term future.
"Our Team was founded on the principle of benefiting from proven experience whilst also providing opportunities for young emerging talent to progress to the pinnacle of motorsport. Thus far, this philosophy has also been reflected in our commercial model. The ongoing challenges facing the industry mean that we have had to take steps to secure our long-term future".
"Tough economic conditions prevail and the commercial landscape is difficult for everyone, Formula 1 teams included. We would like to thank Timo for working with us to reach this decision, especially as he had a valid contract, and also for the contribution he has made to our Team. We wish him all the best for his future and I would like to congratulate the next team acquiring the services of such a competitive, professional and experienced racer."
Marussia has already signed Max Chilton and now need to find a driver to be his team-mate.
"We will provide an update regarding the completion of our driver line-up in due course."
Force India and Caterham also currently have vacancies.