Ross Brawn is upbeat about the progress Mercedes are making with their 2014 challenger with the outgoing team principal saying "things are coming together well".
Having finished second behind Red Bull in the Constructors' Championship this season, the Brackley-based team are expected to take another step forward next year, especially with the introduction of new regulations.
Although he doesn't want to get too far ahead of himself, Brawn feels the squad have laid some solid foundations already.
"If I said Mercedes were completely on target, I wouldn't be telling the total truth. But I think they are no worse than any other car builder," he told Autosport.
"You set your objectives, you set your programme, you have stakes in the ground. All the major things, the chassis, the gearbox, all those things are coming together well.
"There are always some things that slip a little bit but nothing unusual in my experience. It is in pretty good shape."
Unlike at the start of the 2013 season when most teams opted for an updated version of their 2012 models, teams have had to start from scratch, which put a lot of extra pressure on everyone.
He added: "There is a huge amount of work going on at the factory, the guys are working 6-7 days a week now.
"This really is a project from a clean sheet of paper.
"There is very little carry through from this year to next year in terms of components. There is carry through in terms of technology, but not components."