Nico Rosberg says winter testing is even tougher for Mercedes, because it is the current benchmark in Formula 1.
The German believes it will be another good year for the team, ahead of the first round in Australia this weekend, but believes Ferrari will be "right there" with Mercedes.
"This is always a massively exciting time of year," Rosberg said. "Testing is important, of course. But what every driver really looks forward to is unleashing a new car flat out for the first time. I'm already itching to get back out there.
"Limited testing gives everyone a big challenge, as you have to be efficient and make more of that time than anyone else. It's even tougher when you're the benchmark, as you need to invent while others can invent and copy.
"But we've done our homework and I think it looks set to be a good year again for us. The level of build quality in the car – how it all fits together and all the little details – is just awesome.
"It's so impressive how the team keeps on pushing, aiming to be better all the time. Of course, we all know that Ferrari are right there with us and maybe some of the others will be up there too, so we have to keep pushing. But it's good to have that competition. With the team we have I believe we can keep them behind.
"I'm really hoping to bring back a couple of wins from the first flyaways to reward everyone at the factories for their hard work. There's such a positive vibe in the team and everybody gets so excited. I know they'll be cheering us on at home every weekend, so it's our responsibility to deliver for them."
