Nico Hulkenberg admits this season will be a "pretty unique situation for everyone" due to the new regulations.
Out goes the 2.4l V8 engines and in come the new 1.6-litre V6 turbo power units with hybrid technology, leaving most teams and drivers on the same footing at the start of the season.
Hulkenberg, who has returned to Force India this year following a one-year stint at Sauber, admits it is difficult to predict how much things will change due to the new rules.
"At the moment, nobody knows how this season and the new cars are going to be," he told the official Force India website. "There are a lot of questions which we can't really answer until we have been on the track, running - not even the first race will be the absolute truth teller. There will be a lot of data we need to look at and analyse, work with it to go forward.
"Never before there has been a situation like this, when with just a couple of weeks before the first test nobody has any idea of where everyone is.
"It's a pretty unique situation for everyone. It's a challenge, an opportunity to do something special, but on the other hand it opens up the opportunity to do mistakes, so we will need to do our work well."
The German will also have a new team-mate at the Silverstone-based squad this year as Sergio Perez has moved there from McLaren.
"It will be really interesting to work with Checo," Hulkenberg said. "We both have four years' worth of experience in Formula One, so you can say we are at a similar stage in our careers. Of course, we will both try to be in front of each other, but that's normal when you are in these circumstances. We thrive in a competitive environment and this is what we will have here."
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