Marussia unveiled their new MR02 car for the 2013 Formula One season ahead of pre-season testing on Tuesday.
The Russian-owned team opted for a low-key launch of the car in the pit lane at Jerez before the day's action got underway.
Marussia finished 11th of a possible 12 teams in the constructors' championship last season but have only confirmed one of their two drivers for 2013.
But although British rookie Max Chilton is still awaiting a team-mate, Marussia officials are still hopeful their new car can lift them into the top 10 constructors in 2013.
"We embark on the first pre-season test of 2013 feeling very positive about our new car - the MR02 - and what lies ahead in this next important chapter in the development of the Marussia F1 Team," team principal John Booth said.
"Whilst we have experienced some changes over the winter, the one area of stability we have enjoyed is the one that is most important to our progression from here, the design of our 2013 race car, led by our technical director Pat Symonds.
"The incremental steps we were taking in the latter half of last season gave us the confidence to not only fight hard for 10th place in the constructors' championship, but to feel encouraged by our overall design direction, which was the basis for the car we are fielding here in Jerez today."