Team Marussia will sit out the forthcoming first test of the 2012 Formula 1 pre-season.It has also emerged that the former Virgin team's new single seater will not make an appearance until the third and final test of the winter in Barcelona.Kevin Eason, the London newspaperThe Times' F1 correspondent, said the news is "worrying".After finishing its first two F1 seasons in last place, the team has gone back to the drawing board with what boss John Booth describes as an "almost entirely new (car), with very little carry over".'LITTLE POINT'Booth said: "Unfortunately our programme has slipped and there seems little point in fielding the new car before we can optimise the run plan for it."The team stated on Twitter: "So the plan is to run the 2011 (car) in Barcelona from 21 February and the new (2012 car) MR01 from 1 March at the second Barcelona test."Booth said: "We will hopefully gain more constructive track time than we might otherwise have achieved had we rushed the new car out for the second test."Previously, Marussia planned to be at the forthcoming Jerez test with the 2011 car to give rookie Charles Pic some mileage.