Marussia F1 team launched its MR03 on the third day of Jerez testing, Max Chilton just completed installation lap on the Ferrari powered M03.
Chief designer John McQuilliam said he was pleased with the way the project had come together.
“We have benefitted enormously from the stability of our design teams, with the same personnel beginning – and now concluding – the process over a 24 month period,” he said.
“I think we can feel justifiably proud of the way we have responded to such a significant challenge and the quality of car we have arrived at with the MR03.
“The car has been manufactured and finished to a very high standard, whilst achieving our most significant weight-saving targets to date and, importantly, with a crucial eye towards maintaining our excellent record of reliability.”