Williams chief technical officer, Pat Symonds, believes that the plans to bring refuelling back to F1 should be postponed until 2018.
F1 chiefs including Bernie Ecclestone and FIA president, Jean Todt, will be meeting to discuss potential rule changes on Monday.
Last year similar discussions took place, with drivers voting in favour of bringing refuelling back to the sport. However, the proposals were later abandoned, with the teams strongly opposing the idea.
Refuelling was banned from the sport back in 2009, amidst safety concerns as well as part of plans to reduce costs.
Symonds spoke at the Autosport International Show on Saturday, and admitted he would prefer waiting until 2018 rather than next year.
“I’d be much happier if things moved on to 2018 rather than 2017 for new rules, and we spent a year really researching what’s needed. But that’s probably a cry in the wilderness.
“There are two technical regulation meetings yet to take place, one at the end of this month, one in February, before the 2017 rules are established by the beginning of March. So yes, we are getting into some of the details rather than the fundamentals.
“The Strategy Group gave a mandate as to what the cars should be like for 2017, and we’ve been working on it.
“I think now the Strategy Group are moving on, and they are looking at the sporting aspects rather than the technical aspects.”
Symonds believes that they are trying to move too quickly and that there is still a debate about what direction the sport needs to go in.
“Will we produce a good car? I don’t know. I think we’ve still got work to do on it. I do feel a little bit rushed, a little bit pressured,” he claimed.
The strategy group will also be discussing plans to increase engine noise, as well as making power units cheaper and simpler.
